PRIORITY CLAIM 
     This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application Ser. No. 61/785,954, filed Mar. 14, 2013, which is expressly incorporated by reference herein. 
    
    
     BACKGROUND 
     The present disclosure relates to a juvenile potty system. In particular, the present disclosure relates to a child training potty for use by itself or in combination with an adult toilet. 
     SUMMARY 
     A juvenile potty system in accordance with the present disclosure includes a seat, a waste-collection bowl associated with the seat, and a base configured to receive the waste-collection bowl and the seat. In illustrative embodiments, a mobile child potty includes a waste-collection bowl, a juvenile trainer seat configured to lie on top of the waste-collection bowl, and a seat topper configured to lie on top of the juvenile trainer seat. The seat topper is also configured to be removed from the juvenile trainer seat and placed on an adult toilet seat. 
     In illustrative embodiments, a downwardly extending liquid-deflection rim of the juvenile trainer seat is arranged to extend into an interior region of the waste-collection bowl to overlap and lie within a brim of the waste-collection bowl to deflect discharged liquid into the waste-collection bowl. A downwardly extending liquid-deflection rim of the seat topper is arranged to extend into the interior region of the waste-collection bowl to overlap and lie within the liquid-defection rim of the juvenile trainer seat and the brim of the waste-collection bowl to deflect discharged liquid into the waste-collection bowl. 
     Additional features of the present disclosure will become apparent to those skilled in the art upon consideration of illustrative embodiments exemplifying the best mode of carrying out the disclosure as presently perceived. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The detailed description particularly refers to the accompanying figures in which: 
         FIG. 1  is a perspective view of a juvenile potty system in accordance with the present disclosure and showing that the system includes a removable waste collector comprising a ring-shaped seat topper adapted to be used on an adult toilet as suggested in  FIG. 2 , a ring-shaped juvenile trainer seat underlying the seat topper, and a waste-collection bowl underlying the juvenile trainer seat and showing that the system also includes a footstool including a base formed to mate with and support the removable waste collector in a use position as shown, for example, in  FIGS. 4 and 5  and a lid mounted on the base for movement between an opened position shown in  FIG. 1  and a closed position shown in  FIG. 2 ; 
         FIG. 2  is a perspective view of the removable waste collector of  FIG. 1  showing that the ring-shaped seat topper has been separated from the underlying ring-shaped juvenile trainer seat so that it can be placed on a seat of an adult toilet and showing that the footstool can be placed alongside a front portion of the adult toilet (once the lid has been moved relative to the base to assume the closed position) to locate an elevated step surface provided on a top wall of the lid near the adult toilet to provide means for helping a young child climb onto the ring-shaped seat topper after it has been placed on the seat of the adult toilet; 
         FIG. 3  is an exploded perspective assembly view of the juvenile potty system of  FIG. 1  showing, in series, from top to bottom, the lid of the footstool, the removable waste collector comprising a seat topper including a seat pad and an inner liquid-deflection rim, a juvenile trainer seat including a seat pad and an inner liquid-deflection rim, and a waste-collection bowl, and the base of the footstool; 
         FIG. 4  is a front perspective view of a juvenile potty system in accordance with the present disclosure showing the seat topper positioned to lie on the juvenile trainer seat supported above the waste-collection bowl to cause the liquid-deflection rim of the seat topper to extend downwardly into an interior region of the waste-collection bowl; 
         FIG. 5  is a rear perspective view of the juvenile potty system of  FIG. 4 ; 
         FIG. 6  is a sectional view taken along line  6 - 6  of  FIG. 4  suggesting that the liquid-deflection rim of the seat topper extends downwardly into the interior region of the waste-collection bowl to deflect discharged liquid into the bowl without allowing such liquid to escape to a region under the seat topper and outside the waste-collection bowl; 
         FIG. 6A  is an enlarged view of the circled region of  FIG. 6  showing that the seat topper includes a liquid-deflection rim that overlaps with and extends inside the brim of the waste-collection bowl, and showing that the juvenile trainer seat underlying the seat topper also includes a liquid-deflection rim that overlaps with and extends inside the brim of the waste-collection bowl and lies in an annular space provided between the liquid-deflection rim of the seat topper and the brim of the waste-collection bowl; 
         FIG. 7  is a front perspective view of a juvenile potty system in accordance with the present disclosure after the seat topper has been removed and showing the juvenile trainer seat supported above the waste-collection bowl to cause the liquid-deflection rim of the juvenile trainer seat to extend downwardly into an interior region of the waste-collection bowl; 
         FIG. 8  is a rear perspective view of the juvenile potty system of  FIG. 4 ; 
         FIG. 9  is a sectional view taken along line  9 - 9  of  FIG. 4  suggesting that the liquid-deflection rim of the juvenile trainer seat extends downwardly into the interior region of the waste-collection bowl to deflect discharged liquid into the bowl without allowing such liquid to escape to a region under the juvenile trainer seat and outside the waste-collection bowl; and 
         FIG. 9A  is an enlarged view of the circled region of  FIG. 9  showing that the juvenile trainer seat includes a liquid-deflection rim that overlaps with and extends inside the brim of the waste-collection bowl. 
     
    
    
     DETAILED DESCRIPTION 
     A juvenile potty system  10  includes a mobile child potty  12  and a separate footstool  14  shown, for example, in  FIGS. 1 and 2 . Mobile child potty  12  includes a waste-collection bowl  20 , a juvenile trainer seat  30  configured to lie on top of waste-collection bowl  20 , and a seat topper  40  configured to lie on top of juvenile trainer seat  30  as suggested in  FIGS. 1-3 . Seat topper  40  can be removed from juvenile trainer seat  30  and placed on an adult toilet seat  50  as suggested in  FIG. 2 . A downwardly extending liquid-deflection rim  34  of juvenile trainer seat  30  is arranged to extend into an interior region  22  of waste-collection bowl  20  to overlap and lie within a brim  24  of waste-collection bowl  20  to deflect liquid into waste-collection bowl  20  as suggested in  FIGS. 6 and 6A . A downwardly extending liquid-deflection rim  44  of seat topper  40  is arranged to extend into interior region of waste-collection bowl  20  to overlap and lie within liquid-deflection rim  34  of juvenile trainer seat  30  and brim  24  of waste-collection bowl  20  as suggested in  FIGS. 9 and 9A . 
     Mobile child potty  12  is configured to be mounted in an aperture  15  formed in a base  16  of footstool  14  after a lid  19  has been moved about a lid-pivot axis  19 A to an opened position as suggested in  FIG. 1  and shown in  FIGS. 4-6 . Mobile child potty  12  is mounted on base  16  of footstool  14  by, in sequence, placing waste-collection bowl  20  on base  16  to extend through aperture  15 , placing juvenile trainer seat  30  on top of waste-collection bowl  20 , and then (if desired) placing seat topper  40  on top of juvenile trainer seat  30  as suggested in  FIG. 3 . Child potty  12  is also suitable for use in another piece of furniture that includes a base and perhaps a lid but does not function as a footstool. 
     Waste-collection bowl  20  includes an annular seat receiver  21  comprising a lip  21 L and two separate handles  21 H 1 ,  21 H 2  coupled to lip  21 L and arranged to extend in opposite directions as suggested in  FIG. 3 . Waste-collection bowl  20  also includes a waste receptacle  23  formed to include interior region  22 . Brim  24  of waste-collection bowl  20  is provided by an upper portion of waste receptacle  23  located alongside annular seat receiver  21 . Waste generated by children seated on seat topper  40  or juvenile trainer seat  30  of mobile child potty  12  is collected in interior region  22  of waste receptacle  23 . Lip  21 L of annular seat receiver  21  is tapered as suggested in  FIG. 3  down into waste receptacle  23  to force any excess liquid splatter to run back into interior region  22  of waste receptacle  23 . 
     Juvenile trainer seat  30  includes a seat pad  32  formed to include an interior edge  33  and an annular downwardly extending liquid-deflection rim  34  coupled to seat pad  32  at interior edge  33  as suggested in  FIG. 3 . Juvenile trainer seat  30  also includes a urine deflector  36  coupled to seat pad  32 . In use, liquid-deflection rim  34  of juvenile trainer seat  30  is arranged to extend into interior region  22  of waste-collection bowl  20  to deflect discharged liquid into waste receptacle  23  without allowing such liquid to escape to a region under juvenile trainer seat  30  and outside of bowl  20  as suggested in  FIGS. 9 and 9A . Liquid-deflection rim  34  functions as a retaining wall to contain discharged liquid and minimize leakage. 
     Seat topper  40  includes a seat pad  42  formed to include an interior edge  43  and an annular downwardly extending liquid-deflection rim  44  coupled to seat pad  42  at interior edge  43  as suggested in  FIG. 3 . Seat topper  40  also includes a urine deflector  46  coupled to seat pad  42 . In use, liquid-deflection rim  44  of seat topper  40  is arranged to extend into interior region  22  of waste-collection bowl  20  to deflect discharge liquid from a child seated on seat pad  42  into waste receptacle  23  without allowing such liquid to escape to a region under seat topper  40  and outside of waste-collection bowl  20  as suggested in  FIGS. 6 and 6A . Liquid-deflection rim  44  functions as a retaining wall to contain discharged liquid and minimize leakage. Seat pad  42  is made of a pliant cushion material in an illustrative embodiment. 
     In illustrative embodiments, juvenile trainer seat  30  further includes positioning arms  37  that are coupled to and extend below seat pad  32  to align with and extend into companion arm-receiver holes  17  formed in base  16  when juvenile trainer seat  30  is mounted on base  16  of footstool  14  as suggested in  FIGS. 1, 3, 6, and 9 . Trainer seat  30  hinges about a point at the back of the seat to move the seat from a use position aligned on base  16  to a non-use position tilted up from base  16 . In illustrative embodiments, seat topper  40  and juvenile trainer seat  30  cooperate to provide means for supporting a child in a seated position to cause the bottom of the child to be lower than the knees of the child in a comfortable manner. 
     Lid  19  of footstool  14  is sized and configured to cover juvenile trainer seat  30  and seat topper  40  completely when lid  19  is closed to mate with base  16 . Lid  19  may be made of a clear material so that a caregiver can see into waste-collection bowl  20  to determine if liquids are present therein.
A potty for use by young children includes a waste collector and a seat adapted to rest on the waste collector. The potty can be placed in an aperture formed in a base.