I went to visit my nephews after work last night. Cute little buggers. Anyhow, my mom start tells me a story about Eric (the 4 year old).
My sister in law tells him jokingly when he's acting up "do you want a knuckle sandwich?" Apparently he has picked this up but not in the same way. He's a little too literal. So he tells his mother, "You want me to put my fist between two slices of bread and you chew on it?!"