I've told this story probably 10 times already, but I'll tell it once more here.
On Christmas Eve, Kirk and I were busy wrapping presents at my mom's house (she hates wrapping), and Adam had gotten in trouble several times for trying to sneak into the room where we were wrapping. When I heard a little knock on the door, I was quick to tersely respond.
Me: "Adam... is that you again?"
Adam: [in a much lower than normal voice] "No." [Pause] "I'm Santa Claus."
Me: [Stifling laughter] "Adam, you are NOT Santa Claus."
Adam: [still in a low voice] "But I have a fat belly! Ho, ho, ho."
Kirk and I just laughed and laughed. Later, my brother informed me that Adam had stuffed his blanket up his shirt. I guess he really wanted to get into character.
2 months ago