I love hot peppers! Once in a while, when you get a dose of the really hot stuff, you almost get a euphoric feeling while your eating 'em.
Never seem to get anything remotely resembling a euphoric feeling the next morning however. More like "WOWWWWW-OW! gotta stay seated...gotta stay seated...gotta stay seated..."
Just take some shaved ice with you to the restroom. Also, applying some topical numbing product, like those meant for teeth, will get you though those first uncomfortable seconds.
I had the unfortunate experience of eating a pepper in an oriental dish that actually burned the skin on my tongue. That's no fun.
Euphoria? I think think of other ways...death by chocolate maybe.