While hunting around Fallout 3‘s Capital Wasteland last night for more Bobbleheads, I unlocked the following achievement after over 50 hours of total gameplay:
Doesn’t Play Well with Others (20G): Kill 300 people
And it’s true. I don’t play well with others. More interestingly, I don’t play well with critters either, as at the time this unlocked I had killed over 600 creatures, ranging from Mole Rats to Mirelurks to one or two Deathclaws. My violence record, you can now has it.