I've never understood how anyone could honestly sit at work and try to surf porn or look for dirty pictures on Google images. But people do it all the time. Smaller companies are probably a lot worse than the bigger ones. I mean at smaller companies the politics are worse because "I've know X for X number of years. We go way back." or "do you know who I am?". And for the most part, in small companies, they are correct when they ask those questions.
I found it interesting the other day when I read an article saying that the sites with the most spyware and malware on them where not porn sites, but celebrity related sites. Who would have imagined that it was saver to search for the dirty stuff and not the gossip. But it would seem to be the case.