How to tilt me...
1) Stand up and shout "One Time!" when the turn and/or river is being dealt.
2) Call for a set-up or a "wash" because you're "card dead".
That's basically it, but man will I be (irrationally) gunning for ya if you do either of those things...
Anyone else have any particular triggers?
Oh man, my biggest tilt switch is when I just lost a big pot, and some inconsiderate prick wins a small pot and feels the need to tell me relentlessly about how he thought he was going to lose the hand. It's like the skinny girl telling the fat girl how fat she feels. I find that some (ok, most) people at the table are entirely too self unaware.