SteamPoweredKleenex Were these something I was in charge of, I'd have to program in a random chance that at the end they'd all begin screaming things like "WHERE ARE MY LEGS?! I CAN'T FEEL MY LEGS!!!" and "OH, GOD, NOOOO!" and "AGGGAAAHHHH! LORD SATAN, END YOUR CURSE!" and so forth.
But I'd be responsible about it; I'd have a defibrillator on stand-by for any people "overcome" with excitement.