As a quasi-admin on a server I put myself into Lawful Good for being as un-obstructive as I can unless a total asshole comes on, then I'm just ruthlessly efficient. My alignment, like that of others, depends on my mood, but I have a habit of going out of my way to kill players either doing, using, or saying things that irritate me. On TF2 I will go pyro in order to deliberately kill and taunt Chargin' Targe demomen who I feel are both selfish and unsupportive of their team and annoying.