A series of increasingly far-fetched events might occur if someone were to give a cupcake to a cat.

Follows a boy and his mouse through a busy day at school.

If you give a mouse a brownie, he's going to ask for some ice cream to go with it. When you give him the ice cream, he'll probably ask you for a spoon. He'll start drumming on the table. Drumming will get him so excited he ll want to start a band ...

Relating the cycle of requests a mouse is likely to make after you give him a cookie takes the reader through a young child's day.