I told the boys this knock-knock joke. (I don't think I made it up; it feels like I heard it a long time ago and just recently remembered it, but I don't know where I heard it originally.)
Olive you! (I love you!)
Anthony's reaction: Big smile on his face. "I love you too!"
Francis' reaction: Walks to the kitchen, opens the fridge, gets a jar of olives, brings it to me and demands one.