...you have a friend standing by to hand you a bottle of superglue while playing Warhammer 40,000-- the standard signal for which is to scream "Medic!".
...you plan out your week's gaming so as to blow your bad dice-karma on one-shot wargames so you can build up good dice-karma for the games you "need" to do well in.
...you (as GM) eye that stack of player-donated Drama Dice wistfully and rack your brains for a way to end the scene so you can get your hands on all that golden goodness.
...you read a typo on a death certificate and start to laugh out loud, then stop as you realize that no-one else in your office will know why death by "Drowing" is funny.
...you laugh when you see each new Hackmaster release hit the shelves, and can't believe some people don't get that it's a very dark joke that people actually pay money for.
...you smile when you purchase each new Hackmaster release, and can't believe some people don't see how much fun it is and are still looking for another human being willing to play it.
...you respond to John's announcement of a new character for any campaign with, "So, what's her name?"
...you've seen Baet wearing his Minotaur Hat.
...you know why Baet *has* a Minotaur Hat.
...you're pretty sure you caught a glimpse of Zeppa. Once.
...you know that, for sheer horror, Sadako's "Ringu" video has nothing on "Pirate Party on Catalina Island."
...you think it would almost spoil Johann's personality if he bought social skills.
...you mean that in a good way.
...you have money riding on when Gordon will praise a post-1977 Star Wars movie or game.
...you have money riding on when Poney will activate a Hybris.
...you have money riding on when Jim's Duellist will actually fall in love and git some.
...you worry about just what Asgard's been up to all this time.