I love Raymond Briggs, and you’ll find loads of jokes like that one in
Father Christmas It’s a Blooming Terrible Joke Book
http://www.amazon.fr/Raymond-Presents-Christmas-Blooming-Terrible/dp/0140373543/ref=sr_1_1?ie=UTF8&s=english-books&qid=1290970222&sr=8-1 so when you’ve pulled all the crackers you can still laugh your socks off. If you’ve never read Fungus the Bogeyman, another Raymond Briggs title, buy it for your kids or buy it for yourself, as in the best children’s books there’s something for the grown ups too.