I set up a bottle, move back and hold out my arm, turning that part into pistol form. I shoot the bottle and cheer with a scarily happy face. "Bang Bang!"
I give my scary face. "If you don't stop lieing, I'm going to have to search you for that injury."
(http://www.youtube.com/watch?v=VQi1UyEXs4M <- The Patty scary face for who don't know XD)