I'm glad that no one would mistake me for a competent climber.
But yeah, this would worry me too. You probably made the right decision to not continue to put your health in his hands; no point being the accident that teaches the guy the value of safety. Not being there I can't say how sincere the fellows "sorry" was, but I guess I'd take it at face value, and just assume safety isn't topmost on the guys mind. Be glad that you spotted it...