is there a ball and chain around my ankle? i didn't think so.

I've got a coworker who feels it's his responsibility to notify me when I haven't been at my desk; as if he wants me to know that he "caught" me being absent.

Note to coworker: I don't report to you, and it's not your business if I'm not there when you come over. And by the way: I also notice it when I come over to your desk and you're not there. But I don't inform you of it. I also notice it when I come over to your desk and you're playing video games, surfing the web, or chatting with your online friends. You may get a vibe of disapproval from me, but you don't report to me either, so I keep my mouth shut about it.

In fact, it's not a rare occurrence for employees to be absent at odd hours during the day. The company does not keep tabs on the comings and goings of the worker bees, at least not so far as I can tell. Perhaps they make the reasonable assumption that if you need to be out for a few hours during the day, you'll make up for the time. This is something that I like about the company.