Everybody's done it at least once, right (I need some reassuring)? So I go to change my oil this morning, and I put a 12 point 13mm socket on without thinking. Felt that awful feeling of soft metal bending. Tried a six point 13mm to no avail. Hammered on a 1/2" six pointer, no luck. Hammered on a 12 point 12mm, just kept making it worse. Vise grips, nothing. Any suggestions before I go to sears and pick up a set of those sockets that eat into the metal (and a new drain plug)? I could've sworn that I made sure not to overtorque it last time I changed the oil, but I suppose that I did. I also made the mistake of doing this with the engine hot, so the head of the bolt was a bit softer than it should've been. Never again. Don't have a mig welder, or else I'd stick a nut right onto it.