You know you play too many videogames when...
~you enter a shopping mall expecting to find zombies, heavily-armed militia men, or both.
~you search for your health potion every time you get hurt.
~your entire CD collection is made up of game OST disks. *sadly, this might be true for some people...
~you look for CTRL+ALT+DEL when you crash your car.
~driving to work/school/both involves at least one stolen vehicle and the subsequent police chase.
~you expect an exclamation point to appear above your parent's head whenever they spot you while you're hiding.
~you jump out from under cardboard boxes and attack people with a Nerf gun while making sounds like a silenced pistol.
~you jump out of lockers and attack people with a Nerf gun while making sounds like a silenced pistol.
~you jump out of closets and attack people with a Nerf gun while making sounds like a silenced pistol.
~you jump out of- *ok, I'll stop*
EDIT: forgot one x-x
!~you search for the plastic colored buttons and strum bar on a real guitar, then ask your buddies where the hell they are.