So this morning I was in the shower and I saw that we'd ran out of block-type soap. "Oh well, no worry, I'll just use this mint tea shower gel as a bodywash instead."
Now for the record, I have used mint tea shower gel before (and I am aware of it's tingling/numbing sensation) but only ever as a shampoo, never to wash my body with.
So I began rubbing it onto my face, and a little bit of the lather/foam went up my nose. Now during this, I guess I forgot to breath since I closed my mouth so I wouldn't eat any of the shower gel. Anyway, so I suddenly gasped for air and I managed to inhale all of the foam up my nose. It felt instantly like my entire sinus system was burning, then I felt dizzy and passed out.
I woke up like five minutes later with-now freezing cold shower water spraying over my body. I managed to land on the drain hole, meaning another few minutes and the shower would have filled up and I probably would have drowned. My shoulder and back are pretty badly bruised, but I escaped without injuring myself badly. I'm still not exactly sure what happened, however apparently the mint tea could have had a strong enough a scent - and been far enough up my nose that it worked as an "incapacitating agent". Kind of like that chloroform thing you use on women.