I bought this toy because we have a running joke in my house basically saying that one of my three Pekingese loves to make toys with squeaks in them "scream".  He only plays with a toy that has a squeak in it until it doesn't squeak anymore, then moves onto the next.  I bought Mr. Bill for him, because I thought that he would love the "Oh NO!" sound and sure enough... instant hit.  He carried Mr. Bill all over the house with him and we always knew where he was because we could hear the "Oh NO!" sounds from all over the house.  Sadly, Mr. Bill has been retired, because he was taken out into the yard in the rain and got muddy and as I can't wash him with his battery pack in, I threw him away until I can buy another one.  Anyway, great toy!  Can't wait to get him back into our house!