I really hate it when you sit by the supervisor at work. You hear almost everything in a cube farm, even if you're trying to be quiet. But the one thing that should be obvious to everyone is that if you are a supervisor, and you are bitching about an employee, and said employee sits right next to your cubicle, you may not want to bitch about them while they are at their desk. Especially if you say some very specific things that they can hear and reasonably assume that they are the subject of said bitching. At the very least, carry on that conversation elsewhere when said employee promptly comes in at the same time every day.
I guess it's time to dust off the old resume and update it. For the record, I don't care if people bitch about me, but for the love of dog, at least have the decency to do it out of earshot.
