I'm a bit of a chilli-nut myself, and run through hot sauces and peppers at quite a rate of speed.
If, like InfiniteNow mentioned above, you're not explicitly allergic to the hot stuff, then there are quite a few medical advantages to indulging in them!
For instance, cayenne pepper is one of the best and easiest
remedies for high cholesterol!
Also, counter to what you might think, cayenne peppers are good for a host of other things, including ulcers, funnily enough.
So, to cut a long story short, I think those liability forms is more a cute marketing ploy than anything else.