It could be a therapeutic thing for him. Who knows. I find humor in it, but I'm not laughing at him. I deal with people every day who have disabilities. They're real people, they just have a different set of circumstances in their lives than most. It doesn't mean they don't have a sense of humor, though, and just like the rest of us, they can laugh at themselves when they do something silly. I choose to believe this guy is having fun with this, it's a release for him, and I laugh along with the "joke."
I see nothing wrong with that.
Keep wreves in General Talk in 2011!