And here comes the question "so what were you doing during the two weeks of feasting and devouring plant and animal flesh?" from everyone I know in school.
"Well, I played a game which simulates an alternative universe America which never invented the transistor which le a leads to a nuclear apocalypse, and I'm 19-years old vault dweller who escaped from a vault locked for 200 years...", which will inevitably lead to either explaining the plot synopsis of Fallout 3, or being shunned out of society after mentioning "post-apocalyptic".
It's much easier to say "Oh, yeah. I played Counter-Strike and drank vermouth."