I guess my mind is a little to simple to understand exactly what this guy is doing. If I understand you right, the guy is mad at "Store A" because they don't accept his trade ins. He then steals a game from "Store A" and walks it over to "Store B" to sell it?
If this is the case, then yes, stealing is stealing. It is against the law and it can come back to hurt whoever buys the product. For instance, each DS has a serial number that is on "Store A's" inventory. If it is found somewhere else, then trouble will follow.
Bottom line, if your conscience is bothering you, I have found it is rarely wrong.
"Even if you are on the right track, you'll get run over if you just sit there" - Will Rogers
"I'd rather be running a marathon than playing Bomberman Live with Chris."
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