I was required to take several computer related classes as a business school undergraduate in the late 90's. My teacher for one of these classes competed in ultimate fighting (no joke). One day, he was very excited to show us a new technology to which he had access. I forgot what he called it, but it was essentially an early version of video conferencing...like old school Skype.
He positioned the camera on the class and used the giant classroom projection screen as his computer's monitor. He then solicited some other random users of this program on the web and asked to chat with them. We eventually found a taker, which was apparently some guy from some country I don't even remember right now. As soon as his camera engaged, the entire class got a close up of of him removing his pants and starting to fondle himself.
Our professor went berserk, the entire class had a good chuckle, and I still marvel at how this pervert hit pay dirt that day....he had an entirely captive audience in the form of a class of American co-ed undergraduates all staring into the camera watching him begin to go to business with himself.
So now my new computer has a built in camera and a pre-installed version of Skype. And every time I look at it, I think of my professor yelling, "Holy s&*t, he's taking off his pants!"