Indeed, A friend of mine (24y/o) fakes being sick, so he can miss work and do some raids on WoW, plays for hours on end (on his days off, that is all he does (around 12+hrs)), hes car broke down around 2+ years ago and hasnt repaired it back cuz of WoW, at work all he talks about is WoW, his entire life is centered around WoW.
I can positively say that hes addicted.