That's odd. The link still works for me.
In the video, a young man is fooling around in class, bothering a young woman in front of him by flicking her hair with his pen, and turning to laugh at his friend, who seems to be recording it all on a camera phone.
The professor can tell that something is going on, but every time he turns to look at the douchebag in question, he temporarily stops his douchebaggery.
Finally, the professor picks up a dry eraser from the white board and throws it at the douchebag, hitting him in the forehead.
