Haha well remember that it's a cartoon and IRL it wouldn't be nearly that easy to accomplish. Probably need some sort of master Theatre key.
My Director had a special key that would unlock any theatre related stuff that was pretty cool. It's like an allen wrench looking key and it's badass.
IT STILL BUGS THE FUCK OUT OF ME
I have no problem with Big Foot dancing around a car, or heating a can of soup using the cigarette lighter of a car. Or catching someone falling off a waterfall by casting a fishing line after them, and the fishing line catches up to them.
But that trapdoor... it irks me.