I grew up with someone like this. I once saw him run directly into a sliding glass door; when we got a look at his face we could see the mark it left as well as the mark near it that he got an hour earlier when he did the same exact thing.
I was going to post a long drawn out thing here about how the door that was just defending itself was white and this one was brown but I got bored so just picture a kinda half-assed story here. maybe throw something about time travel and a kinda old crappy movie in there.