next time you want to touch something that's metal that's obviously hot, wet your hand first, and barely 'tap' it... it prevents it from actually burning your skin, you'll still feel the heat, and maybe even feel like you burned yourself for a good 20 minutes (depending on how hot it is) but you're not going to be feeling the pain for hours and definately won't actually leave marks... i used to test how out my oil was (when i'd go to fry something, i used to have a bad habbit of putting shit in way before it was hot enough to cook) by wetting my finger down, and 'tapping' it into the oil...