Sorry misinterpreted your post, generally you would not call someone "numb nuts" unless you are implying it is their stupidity that caused the incident.
I see what you mean now. Yeah my faul it happened. Sure wasn't his best idea though. The gash in his back is almost gone now. Just looks more like his scales are missing and the damage to his fins. He doesn't seem in shock anymore and is eating. Most important is it can't happen again.