Me too... I made a habanero pepper spray as a pest deterrent the first year I began gardening. Didn't wear gloves or pay much attention to the wind when I was spraying. I will NEVER EVER do that again....

I used to put peppers in plastic containers. not tupperware but the cheap throw away ones you can get at the store to put like sandwiches and stuff in. id put them in the container and then put them up in my dashboard of the truck so they stewed in the hot sun all day. it dries them out very quickly. You can dry most peppers out that way in a few days. Then I mix and match for flavor and grind them with a cheap whirly bird coffee grinder and sprinkle the powder on food i want to season, it goes great with spinach, collards, even on Pizza !!
Anyways, one day I was driving home from work, driving err. ahh. maybe a bit.. aggressively.. took a hard turn and one of the containers came off the dash and poured all over the seat. I had an old ass 78 Chevy truck at the time so it was one of those bench seats that went all the way across. Needless to say it didn't take me and my room mate (I was still in the navy at the time) and we shared an apartment out in town. to manage to sit on and smash a few of these peppers. They were habenero's and scotch bonnets and ones called Thai Hots, that were put up there that very morning. They were not done, but had, I guess you could call it vapor in them. When we slid across the seat and smashed them with our asses it was like half a dozen little pepper spray farts coming out of these peppers and in about 20 seconds the cab of the truck was uninhabitable. Were in traffic now mind you and I had to basically do an emergency pull over to the side of the road, doors come flying out we both fall out of the truck gagging, coughing, totally red eyes shut burning, snot running out like a garden hose. I swear it was like being in the tear gas chamber at Gitmo again. Then having to explain this to the cops who were about 10 cars back and pulled over behind us wondering wtf? He walked over to the truck, we were about 10 feet away from it at this point, and basically about joined us gagging. Not a fun day.
One of the other things I would do was make out of the absolute hottest peppers I had, they didn't have the ghost or scorpions back then, so it was basically Habenero's, some other pepper, and one i got from guam, I have no idea what it was really called but we called them the Guamanian Boonie Peppers. It looked like a tobasco, was Sooo sweet at the very tip like a wonderful bell pepper but if you went just a little past that tip it'd drop you into the pits of hell heat wise. I would make a powder I called volcanic ash because it had a dark red like pumice stone color to it. Id drop this in some moonshine and dare people to take a sip or even just dab the ever slightest of the powder. Another word to the wise. I don't care how careful you think you are, you will NEVER E V E R .. get all the hot pepper powder out of the coffee grinder... use a separate one for your peppers and for your morning coffee. IMO you could not spice anything with this stuff.. it just ruined any food items with the heat it put out