Interestingly, I've also been in places in Australia where the Korma dishes are in the original form which can also dissolve metals.

I reserve the stupid hot curry's for night's when I'm entertaining Koreans who've spent the evening making snarky comments about how bland British food is and how British people can't take a little heat. I'm running 4-0 for Phaal eating - which is cheating I know.

I've also won a chili eating contest with a bunch of drunk Samsung guys in Seoul, but I did pay a heavy price for it for the next two days, and the flight down to Hong Kong the next day will rate highly on my "don't do that" scale.