It's hard to get all of the habanero stuff out from under your fingernails, etc. Sooner or later, several hours after you eat and you've washed your hands, you'll still manage to get some to come out from under a fingernail or something.
They are great in the mouth, but not so great when you rub your eye and get it in your eye (been there, done that, too).
Had an incident with my daughter when she was about 6 months old, too - you know how babies will turn and bite the end of your fingers when you look away, just because they're always looking for the next meal? Mine got the end of my finger just after I was shoving little bits of pepper back in my burger at my favorite restaurant (the one that will let me bring peppers and they'll put them in my food). She screamed for a while after that, and let's just say mommy wasn't real happy about my hot food habit for a while.
I relayed that it was just sensory and not a real burn, still didn't help.