What bug has been around forever?

"Everyday we take the Massive daily posts and bring them to Dragoon discussions. We would like to thank Massively for their original content."

It sits there, night after night, just waiting for you to log in so that it can leap out of the darkness and affix itself to your psyche. It's that little nasty bug in your favorite MMO that's been around, well, just about forever. On days that it drives you particularly nuts, you theorize that the dev team came upon this bug one day, found it appealing, and built an entire online game around it to give it a nice home.

The problem is that there are these seemingly indestructible bugs that everyone knows about, everyone complains about, and yet never get fixed. Maybe they can't be stopped, can't be reasoned with, and they will never, ever stop until you are dead... tired from complaining about them.

So if you had to pick one bug in particular that's been in your game ever since the beginning, what would it be? Is it a bug that you encounter on a regular basis, or a show-stopping whopper that only makes its appearance on a special occasion?

TH