You know you've been playing 40K too long if...
Praise the Emperor!
... you begin all your postings like that.
... you hear/see the word "cheese" and immediatly experience feelings of anger and revulsion, instead of feelings of hunger.
... you stop moving and start fumbling for your bolter when other people gets too close.
...when you're out with your friends, you worry about unit coherency.
...when you see a crowd of people, you estimate in your head how many people you could fit under a blast template.
...troop for troop, your 40K army is larger than your friend's Epic army, and has more super-heavy tanks to boot.
...the word "ultramarine" immediately conjures up an image of a blue-armored Space Marine, rather than a shade of blue.
...you honestly believe that swords are superior hand to hand weapons because they afford you a parry.
...you realize that for the amount of money you spent on miniatures, you could be living in a better house.
...you look for hard and soft cover when walking around.
...you think of Akira/Yoda/whoever as a fourth-level psyker.
...when buying food, you stop to think how many blister packs you could buy with the money. (...and for this reason, eat Ramen instead).
...you refer to the various weapons by their "colloquial names" (E.g. "My Ork Warbuggy fires it's Sun Gun at your devastator squad." "I return fire with Hell's Halitosis...").
...you put an Ambull onto the table, and no one at the game store recognizes it.
...you pray every day for the Chaos Codex (sorry, Graham).
...in a heated argument with your spouse, you offer to resolve the issue by rolling a d6.