OK, yesterday, I bought Mass Effect 3 PC for $2.00 at a local used video game store, and I tried to install the game. However, the code was already used. I know some people are going to say I'm screwed. I just want some other LEGIT and LEGAL suggestions I mean, I don't know what else to do. You'd think that they would have to tell the store when they trade in a PC game like this that the code has been activated.