MMORPG's piss me off. Even though it owned my life for a while :P
But then, having your MMO account hacked and all your raided-for equipment sold off is worse. Glad I quit before my account was hacked!
And then trying to get back to your favourite forum and having a browser bug set in and not being able to log in
That sums up my absence, and a small section of what pisses me off *clambers into fire suit*