Anecdote allowed? This reminds me of the Habanero Burger at "The Swinging Door" pub (I'm not sure it had the same name when I went there occasionally over 10 years ago, the first time actually almost 20 years ago in 1997) in San Mateo, CA [0]. (EDIT: It was the Prince of Wales pub previously! Lots of Habanero Burger stories: [1]) They had a "Wall of Flame" with stickers from all people who "survived" eating one. You…
> my tongue hung out under flowing water from the faucet in the bathroom. Oh god. Capsaicin is not water soluble. You just removed everything from your tongue BUT the capsaicin.
For some reason I'm a lot more bothered by extremely localized pain than evenly distributed pain, when you chew a pepper you tend to e.g. disproportionately burn on one side of your tongue. Drinking some water and swishing it around in your mouth solves that problem.