According to an MSN-Zogby poll (does that mean Zogby did the poll, and Microsoft paid to attach their name to it?), a lot of us do non-work on company time. There are two of you that came to mind immediately, but your names won’t be mentioned here.
They list several activities more common than you’d think, including watching TV. Although they didn’t mention “blogging during work hours even though one co-worker’s sick and the other doesn’t work Mondays, meaning you have to pick up the slack”.