Ha.. Apple techs piss me off so much sometime.
A buddy and I made a trek last week to the nearest Apple Store. His 2 year old Macbook Pro's battery had literally swelled to the point where it had separated the main case and it would launch and shoot out when he unlocked it from the chassis.
The Apple tech told him "Oh, that's pretty normal, but we'll replace it for free anyway". I was standing a few feet away playing on an iMac and I almost fell over from shock that the guy would actually say that was normal.