You know you're obsessed with Valve when you see a hooded guy waiting for the bus and instinctivly tackle him.
You know you're obsessed with Valve when you go to the gym, and yell "TANK!"
You know you're obsessed with Valve when you peg some nerd in the head with a rubber ball and shout, BOOM HEH-SHAWT! YEAAAAAAAH HEH-SHAWT!
You know you're obsessed with Valve when you find out cake exists.
You know you're obsessed with Valve when you start seeing the Half-Life symbol painted on walls.
You know you're obsessed with Valve when you shout "RELOADEEN!" when loading a NERF gun.
You know you're obsessed with Valve when you see a can labled ">B"
You know you're obsessed with Valve when you think the Army's after you.
You know you're obsessed with Valve when you are afraid to go into mines.
You know you're obsessed with Valve when you see a labratory worker and ask him if he still has Lamar.
You know you're obsessed with Valve when you get paranoid because your computer asked you something (PC maybe?)
You know you're obsessed with Valve when you see a fat guy at McDonalds and nudge him to see if he'll explode.
You know you're obsessed with Valve when your favorite colors are Orange and Blue.
You know you're obsessed with Valve when you ask Bill Cosby where Alyx is.
You know you're obsessed with Valve when you start seeing people with faucets on their faces.
You know you're obsessed with Valve when people start calling you "Gordan".
You know you're obsessed with Valve when you call a sandwich a sanvich.
You know you're obsessed with Valve when you go to the hospital, you ask for an uber.
You know you're obsessed with Valve when you steal someone's briefcase, saying you have their intelligence.
You know you're obsessed with Valve when you start muffling, MMF MRFMRF.
You know you're obsessed with Valve when you think dust mites are headcrabs.
You know you're obsessed with Valve when the color 'green' only reminds you of professor Breen.
You know you're obsessed with Valve when you think of daddy long legs as Striders.
You know you're obsessed with Valve when you put on a mask, thinking it's a whole body disguise.
You know you're obsessed with Valve when you can actually decipher what the Headcrab Zombies are saying.
Last one
You know you're obsessed with Valve when you can't recall any other series.
I'm not funny.
