(Me, giving a talk about sea stars to the kids): "Do you remember what the sea stars have to move around and hold onto surfaces?"
(One of the boys, yelling out enthusiastically because he thought he knew the answer): "Testicles!" *then turns beet red because he realized his mistake*
(Me, trying to keep a straight face and not crack up): "No, but you're close, they're called tube feet."
LOL, gotta love kids.