Every time there's a thread on this topic I feel compelled to post this video of my friend and I trying "Da Bomb" hot sauce (
1.5 million on the heat/scoville scale) for the first time.
http://www.youtube.com/watch?v=TI5Iko0UBW4
My friend is on the left. I'm on the right.
I don't mess with this stuff anymore. I still love hot sauce, but after I'd say around 300,000 on the scoville it stops being much of a sauce and more of an additive where even half a drop is enough to ruin your food as well as your day.