FWIW I've had some really hot curry in Indian restaurants here in the Phoenix area... hotter than any Mexican or Tex Mex.
I agree with the Either you haven't had spicy curry, or your taste buds are calloused! Me too! - actually, just one hot Thai for me, my wife Mottern Man / Will, you will need a few Thai chili pepper torpedos in your curry if you haven't had a spicy Thai curry. If that doesn't do it for you, you can test your buds by eating the pepper straight. That reminds me of a story I read earlier today: Swedish man found dead after eating spicy som tam
Then you've never eaten my curry. It's not just the mouth that burns, me hearty. Not just the mouth...
Some Indian curries can not only set your mouth on fire but other area's of the body as the curry passes through. Don't ask how I know