Good question.
A Co-worker in IT said he's seeing lots of internet activities at work hours. I asked him back, what's the matter? He said, you remember last worldcup? People were watching whole game with their computer. I knew that happened, but I was like, oh... they did that? And he said, some people are "STILL" watching child p**n in the office. Guys. your internet activities at work are being monitored.