What champion's taunts will instantly tilt you?

Just from the ridiculous animation to the actual champion and whether or not someone deserves to be taunting, most of us, I feel like, have that one BM from a certain champion that will almost instantly put us on tilt, especially when they spam it.

My personal insta-tilter is Nunu's laugh. The animation is hilarious, the sound is even better and the fact that it usually comes out right after eating a huge snowball where it feels like you can't do much in retaliation can just instantly inflame and can think of nothing more than wishing that dumb yeti dead.

Easily the best BM in the game.