You know you've played halo too much when: 1. your fingers twitch from the trigger keys(uncontrolably). 2. you think racket/tennis balls are plasma grenades. 3. you think racket/tennis balls will explode after you throw them. 4. you start talking like a grunt. (cough to correct voice) I need 96 more comments C'mon people I do this for a living! (or at least on my spare time)