You know you've been playing RPG's too much when...

[Wicked Witch of the Crest]

You search everywhere for any "helpful" items to complete your "quest".

[Ace Mercury]

'Attack' is your default action.

[PK FIRE!]

You never speak a word and expect people to know what you're thinking.

[Valentine]

You wonder why 20 of the same item wont fit in one space of your bag.

[Ace Mercury]

You run everywhere you go. Walking is for idiots.

[PK FIRE!]

you expect jewlery to have specil powers9 Casting a magic barrier and such.)

[Auron]

You expect to see an oversized boss every now and then.

[Leinad]

you expect everything to turn out right in the end.
you end up suspecting little kids of being the main villain. (I know it's you billy!)

[Ace Mercury]

There's huge loading times whenever you enter a new room.

[Auron]

You look for the town's nearest Mako Reactor expecting to find materia.

[PK FIRE!]

You think that its possible for a human being to wield a weapon that's bigger then them with ease.

[Wicked Witch of the Crest]

You work hard to get the best machine for your job...and you only use it once.

[Ace Mercury]

You refer to your (early) childhood as your 'first disc.'

[PK FIRE!]

You try and drill for mana.

[Ace Mercury]

You're increasingly concerned that you're going to die, and that you haven't encountered a save point since you started your life.

[Crazyswordsman]

You get an autograph from a celebrity, then, in the most random of places, you attempt to "use" the autograph. When nothing happens, you're pissed. -CSM
(I can't think of any non-Earthbound good ones)

[PK FIRE!]

You use complex puzzles as a locking mechanizem fo your doors.

[Golden Ganon]

You wonder why eating food isn't healing that big wound on your leg.

[Ace Mercury]

Yayy. This topic was fun.

When going through our midlife crisis, you finally breakdown and try to buy the God-damned strategy guide.

[Golden Ganon]

When you leave a town or you think you could get to another town in seconds.