Hottest thing I've ever eaten was a whole habanero pepper, seeds and all, in two bites. I handled it for about 30 seconds and then couldn't take anymore. My eyes watered so bad, my nose ran, and I made the mistake of rubbing my eyes with my hands. Needless to say, the whites of my eyes turned, quite literally, completely red. The endorphin rush made me feel a bit stoned and I looked like I'd been on a three day tequila bender and then had been kicked in the junk. It was also nearly as spicy coming out the next day. And just as red.
If I had to pick one food forever, health/nutrition concerns aside, it would have to be pizza. Pizza with the equivalent of one dead medium-sized animal on it in terms of meat. Our old mate Craig would be proud.