a certain amount of time or dances, for stage performances and any private sessions. Optional staging Satellite staging includes one or more areas where a stripper can perform other than a main stage and private dances. Larger clubs can have elaborate staging layouts with multiple stage areas distributed around a club and multiple dancers rotating between them per song. Some strip clubs consider ad hoc performances on satellite stages, paid for by a customer on a per song basis, a form of private dance. Rules at the satellite stages on the main floor tend to be the same as the main stage. In some cases, the layout is significantly different allowing more or less access to the customer. If a satellite stage is located in a premium access zone, access to the dancer could be considerably greater since the higher level of service can include a less restrictive policy than enforced on the main floor. Lap dance, peep show, and lingerie modeling clubs might only have satellite stages with pay to play entertainment options on their premises. Novelty acts (such as shower shows, fire shows, and oil wrestling) can be presented on dedicated stages, temporary staging on the floor, or on the main stage itself depending on the club. The main stage, if used, must be prepared and possibly covered to prevent damage, as accidents and injuries have been reported during these types of striptease performances. When dangerous materials such as fire are used as props a permit may be required to be compliant with local ordinances. Novelty acts are typically performed by feature dancers or by select house dancers during a featured performance. Shower shows require special equipment, so they are more likely to have a dedicated stage in the club with house dancers performing in the show. Optional staging can be present on the main floor or in dedicated rooms throughout larger clubs. Bars and counters A full bar is the primary service mechanism for clubs that offer alcoholic beverages. In many clubs the main bar is the second most dominant element on the floor after the main stage, and in some cases the main (or satellite) stage is built into the bar. Clubs can derive large percentages of their income from drink purchases. For both Rick's Cabaret and VCGH, Inc., service revenues were the single largest revenue source, with sales of alcoholic beverages second. VCGH earned 18%