David Walliams' riches-to-rags story will have you on the edge of your seat and howling with laughter! Bad Dad is a fast and furious, heart-warming new children's book about a father and son on an adventure - and a thrilling mission to break an innocent man into prison . . . It's a high-speed cops-and-robbers adventure with heart and soul about a father and son taking on the villainous Mr Big - and winning! Dads come in all sorts of shapes and sizes. There are fat ones and thin ones, tall ones and short ones. There are young ones and old ones, clever ones and stupid ones. There are silly ones and serious ones, loud ones and quiet ones. Of course, there are good dads, and bad dads . .