You know you've played too much Quake when...

[Lightning_Hunter]

...You find yourself looking at the stairs/ramp leading to your house, and wonder if you could gain incredible speed by jumping down them.

[R00k]

or when u hear the doorbell and u think someone just grabbed the megahealth...

[RawShark]

You see a hummingbird and wonder what his ping time is.

[Rampage]

or when you're having sex and your grunt sounds like a quake ranger

[Syluxguy28O3]

or when you see a locked door and you think you need to push a button to open it.

[MH]

You're walking down the street, see a flickering light, so you shoot it and go looking for the secret area.

[Lightning_Hunter]

You find yourself saying "huhh!" every time you jump.

Or you find yourself saying "Daah", "whooah", or "ewwf" every time you bump or hurt yourself.

[Seven]

... when you put on your wedding ring and think you are invisible.

... when you enter your office in the morning and searching for the "easy" entrance.

... when someone took the last T-Bone steak on a barbeque buffet and you wait for it to respawn.

[R00k]

Using other apps on your computer you keep hitting the ~ to bring down the console...

[Seven]

Using other apps on your computer you keep hitting the ~ to bring down the console...

YES R00k !
That is exactly what drives me crazy sometimes LOL.

[Mindf!3ldzX]

Typing T before every message you send , that isn't inside Quake.