Some people love 'em, some don't.
I make a hot sauce that is quite popular in a small circle of friends. It involves 20 jalepanos and 10 habeneros. A little goes a long way. I've gotten a little in my eyes accidentally and while very unpleasant, it's not debilitating. I know that this is no where near the concentratration of the sprays, but we're not all created equal when it comes to the hot stuff.