Just like sitting too close to the TV will ruin your eyes, playing too much Mario might just take over your reality. Or at least fill it with a bunch of shiny gold coins.
In the Game, this bleeptastic CGI short from Alex Gansert that puts Mario in the real world, makes me wish things like this actually happened just long enough for me to realise that the last two games I played were Limbo and Halo: Reach. And I'll maybe pass on those cropping up on my commute. [Thanks Ryan!]