There's nothing funny about bums

There's nothing funny about bums. Nothing funny at all! They come in all shapes and sizes, the big, the wobbly, the small ... insists a teacher, reading from a book called "The Book of Things That Are Definitely Not Funny." In this hilarious picture book, join a class of children as they attempt to keep a straight face while learning about bottoms. But after the teacher has described ants in pants, ninja farts and torpedoes in the bath everyone i...