So I learned this evening how to make homemade pepper spray, by accident.
It started with a box of macaroni and cheese. Macaroni and cheese is pretty worthless for dinner unless it's dressed up with something else --tuna, onions, salsa, whatever. Tonight I decided to add taco seasoning, onions and Ro-Tel tomatoes (the kind with diced green chiles)
Instead of draining the can of tomatoes-with-chiles into the sink, I drained the juice into water I was bringing to a boil for the macaroni; why not? it might add a little extra flavor.
Then, I realized I'd forgotten to salt the cooking water, so I added salt to the roiling, boiling, tomato juiced-water.
And then I couldn't breathe. So I stepped back, blinked, coughed, and stepped toward the stove again. Then I couldn't breathe again --some noxious, painful fume was steaming from my pot.
We're my tomatoes poisoned? I sniffed the can --nothing. I sniffed the pot --and my throat nearly closed up again.
Somehow, I realized, that the capsacin (or hot stuff) in the green chile juice, in the boiling water, with the salt, created a steam that was, essentially, pepper spray.
I don't recommend trying this yourself, mind you. It was pretty awful.
Re: how not to pepper spray yourself (or: kitchen science gone wrong)