oil drain plug

The head of my drain plug is completely stripped. It's like the mechanic before me cranked it on there as hard as they could each time and then tried tearing it off each oil change. It was done at a Honda dealer every time prior to my purchasing the car. Anyways, I can't currently get it off...

Bought 2000 insight 3 or so months ago, doing my first oil change, underbody covers are off, have 17mm socket ready to go, but the drain plug will not bulge, plug has signs of stripped top, ie, someone didn't have metric and did it with a vice grip or channel lock, no leaking thank God, have my...