That doesn't suprise me, I was running a network for 150 computers while in college and one of the computers was always doing a crazy amount of download and upl

That doesn't suprise me, I was running a network for 150 computers while in college and one of the computers was always doing a crazy amount of download and upload (order of gigabyte a day). Our IDS flagged it and I started investigating what was going on. I finally figured out that the users was using a flash game site. I couldn't believe a darn stupid game could cause that much traffic but we asked the person to stop for a day and it was exactly that.