I saw the thread on what to do if food is too spicy, and I thought about the last time I ate something so spicy it hurt -- Lotus of Siam in Las Vegas. I made the mistake of ordering my shrimp soup at Level 3 spiciness instead of admitting that I am a 100% wimp and just getting it at 1. It really made my mouth hurt. Their spiciness scale goes up to 10 -- I can't imagine eating even a bite of something at 10! I don't even understand how they get the food that spicy.

So... what's the spiciest food you've ever had and were did you have it?