The kids have a pet mouse named Mickey and they really love him. He lives in a glass aquarium (that is cat proof) on our book shelf in our dining room. Once a week we clean the mouse house and it is a really exciting event. We have to get him out and clean all of this things and then we give him a special treat (some sort of fresh fruit or veggie). After his house is clean it sits on the dining room table for the rest of the night so we can watch him run around in his wheel and eat his special treat. I guess it does not take much to excite two small children and three annoying cats.