1.You know you're obsessed with Valve games when you start hittin cops yelling DIE CIVIL PROTECTION!!!! GET OUT OF HERE THERE ARE COMBINE then get a tube and a nade then setting it off thinking that the tube can pick it up and throw it.
2.You know you're obsessed with Valve games when you get a nade and you attach a fire alarm, then throwing it while shooting people with a pistol, claiming that it has unlimited ammo.
3. You know you're obsessed with Valve games when you are me