My family enjoys corny humor, word-play. bathroom humor and the like. My wife and I both grew up in households were there were tons of puns... It's a genetic kine ting.
This afternoon my 11 year old son and I were enjoying an after-school frozen float at the local drive-in; you know a scoop of ice cream in Pepsi Icee. My son usually gets about 2/3 of the way through his and has to excuse himself to go to the restroom.
Today after the bathroom break he returns to the booth looking thoughtful, "You know Dad, I think those frozen floats are made with rocket fuel."
"Really, how so?"
"Every time I eat one I have an I.C.B.M." (icey BM)
That's my boy!