You know Video Games have ruined you when...

[Sammisaurus]

When you do something awesome and look to see how many experience points it got you.

Or when you toss an object to someone thinking they're paying attention, and when it ends up just hitting them, the first words out of your mouth (before 'sorry') are, "Sneak attack! Critical strike!!"

 

[Davikins]

...PSN goes down and you actually care.

 

[xPrometheusx]

When you feel the urge to walk into stranger's houses and ask about their personal lives. (Sounds wrong; think about it. It's in every video game)

 

[Racecarlock]

When you think Shrooms give you extra lives.