What is the most idiotic mistake you have made on a boat?

[robwilk37]

in a hurry, i once mistook the main halyard tail for the anchor rode on the lunch hook. tied the boline and tossed the hook over the side. we drifted back and as the anchor took hold the main starts heading up the mast all by itself, which of course makes are drift even faster. took way too long to figure it out...

note to self... having an extra 40' of halyard tail is both unnecessary and potentially dangerous.

[meridian28]

After a night on the beach took the dink back to the boat, grabbed the painter and stepped aboard. I then watched the dink drift away while i was holding a 2 foot piece of line in my hand.