Been there done it. I took the Ghost chili challenge at a local pub that holds spicy challenges all the time.
I had to eat one half of a dried Jolokia and I survived. But I am strange like that I love spicy and can handle it quite well.
For those that wonder, it does take quite some time to fully kick in, and peppers ranging in the million plus scovils last an extremely long time. The dude in the vid is exaggerating tho.