You mean like the woman that decided to set her house on fire and run around the street buck naked?

Or the kids that passed out because they grabbed what they thought was lubricant for sex, but was in fact Nitroglycerin cream. Which lowers blood pressure.

Or the time I was checking a patient out who fell down and what I thought was a small cut wound up being his almost severed ear in my hand. To which I professionally said, "Oh Crap!" and made his stable blood pressure jump up about a 100 points.

Or................. :P