What is your “why the heck did I do that” moment?

I had one of these knives in my hand and I had just purchased a pair of steel toed boots from a thrift store. I decided to see if the toes could stop a knife thrown into them, by throwing a knife into them while I was wearing them. I never learned if they could or not because I missed the toe and the knife buried itself in the top off my foot. I stared at the knife handle sticking out of my foot for a couple seconds and thought of how stupid I was then pulled it out and dealt with the fallout. The blood ruined the boots.

/r/AskReddit Thread