I'm not entirely familiar with the Gegg&H situation, but if you screwed him, and while screwing him used and altered his gear, you are responsible for restoring it to its original condition irrespective of your cultural/religious/ceremonial norms/practises/customs, etc.
You can't milk a cow while you screw it.
ON THE OTHER hand, I think Gegg&H is responsible for realizing that he is dealing with an evasive douchebag with a weaker moral fibre than he'd like to believe, and hence that Gegg&H may be better off taking the $64 and moving on.