I go with something my mom used to say to me, "you don't advertise, you don't get!"
Actually, I do shit like that all the time; it's a combination of being very clumsy and not giving a shit. Probably for me would be the time I "motorboated" an arm of a man...that wasn't Steve. I thought it was him, but when Steve asked what I was doing, I looked up and said, "I'm trading up daddy!"
Also I was boating on a lake with some friends when, after we went swimming, one guy was "helping me" back into the boat. He pulled so hard, I went right into the boat...and into his crotch. I joke with him all the time that I know I have a big mouth, but he didn't have two shut me up with his big balls!
We have a family friend who told the story one time by starting out, "did I ever tell you about the day I turned 21...and shit myself?!" Apparently he had two of those Activia yogurts and headed to his college class. He ended up shitting himself, then having to go back and "collect his things"..."dirty." Yep, it was his Birthday as well.