Yeah, fallout 3 is a really cool game, but my alignment doesn't make much sense to me.
I pick every lock I find (Helps me level up quicker), steal everything I can get my grubby little hands on, and eat everybody I kill (Cannibal perk) and yet, I am considered good for some reason.
I laughed when I got the achievement for hitting lvl 14 with good karma right after gunning down a helpless scavenger because he didn't have any lock picks to sell me after I finally ran out.
It seems like lockpicks get more and more rare as the game progresses for some reason. I remember finding a butt load of them early on, but now that I need them for those verry hard locks I can't find em anywhere.