Eh, no worries. What goes around comes around. Rip people off for hundreds, life will find a way to rip you off to the tune of thousands or worse. Funny thing is they'll tell you about how they ripped people off, not when they were had. Kinda like gamblers and their winnings, ever hear your gambler buddy tell you how much he lost?
The golden rule is still the golden rule...
I hear ya on that, here's my problem with it though. These packs of little scumbags run around bragging how they fucked over a legit place, then more and more of the disrespectful fuckers do this shit cause they think it's cool. Sooner or later the retailer either changes their return policy, raises prices to stay afloat, or worst case they go out of business. A lot of us don't have the option of buying local so we rely on online retailers for our gear, finding one's that still respect their customers is getting harder and harder.