Yeah at the BW&B in CLoverly, I dropped by once and tried what you would call their "10". At the time I think it was called something like 'inferno' or 'coffin' (they've revamped the names). While the first couple just seemed a bit spicy, by the time I'd finished 6 or 7, I was at my absolute threshold of mouth pain. I learned later that hotness in things like peppers is due to the presence of capsaicin, and can *accumulate*. It does NOT dissolve in water, but it does dissolve in oil or alcohol, making tequila and Mexican food a perfect chaser (milk works too, since it has fat in it).