If the title of this thread confuses you, let me explain:
You are playing a game for cheevos (obviously ) and you've almost completed it with maybe 1-3 achievements left, but at one point, you just gave up for no reason.
For me however, I gave up on Rainbow Six Vegas 2 (missing the Attack and Defend achievements and the Vision Cam achievement) because I mostly play that when I'm not achievement whoring. *GASP!* You play multiplayer for that game!? Yes I do. Plus, I'm a legit MLG pro in that game, so I have to play it for practice.
Another game I gave up on was Marvel Ultimate Alliance 1. I didn't want to collect those stupid simulator disks and then earn Gold in each one. I just stopped there and never came back to it.
That brings me to Mass Effect 1. I stopped because I didn't want to grind with an Engineer and a Biotic character for those stupid "Use 'X' ability 75 times." It drew the line for me.
And finally: Battlefield Bad Company 1. Nuff said.