Wasn't me... Wrong part of the country, and my boat's still on the hard -- though she is a Pearson.
Pretty hard to run aground in this neck of the woods, though I suppose it's doable... Last year a relatively nasty fog layer rolled in, and a key-turner got into a little trouble. The conversation between him and the CPD Marine Unit was relatively amusing, if for no other reason than he couldn't report his position any more accurately than being "on the sand, like." (That's a direct quote.)
CPD: "What is your current position?"
Throttle Jockey: "I'm... I'm... I'm on the sand, like."
CPD: "Sir, where are you exactly?"
Gas Burner: "I'm... on the sand... like."
CPD: "Uh... Sir, are you north or south of Navy Pier?"
Captain Maroon: "Uh... Um... Stand by... <30 seconds of silence>... I'm on the sand, like."
Never did figure out where he was. Doubt he did either.