Worse thing in the world is hearing a cat puke. Second worse thing is seeing it (or stepping in it) after the fact! Trick your loved ones or your enemies. Either way...got you!
Good old-fashioned wholesome fun with the low tech, high payoff Snappy Gum trick! Offer your friends and family a stick of gum and watch their reaction when their finger gets snapped with the hidden snapper!
What that you? Seriously? Whoever smelt it, dealt it? There's more than one way to clear a room and first impressions aren't always the one they'll remember.