Gavorche from Les Miz. And, in my high school's production of Hello Dolly!, they had this one special needs kid playing the conductor of the train in the opening number. Sorry, but I just thought he was adorable doing that.
"During this performance, please feel free to let your cell phones and pagers ring willy-nilly. However, do remember that there are heavily-armed knights on stage and you might well be dragged up and impaled."
(Pre-curtain announcement at the new Broadway musical Monty Python's Spamalot)