Not Know When To Stop

I had blood work done Thursday. While sitting in the waiting room I was watch a specially made program done for the company who's office I was in. Everyone was watching the program with wrapped attention. The show descried what the company does and the steps they take to guaranty you privacy. During the show they showed a nurse or tech taking blood. They showed the needle breaking the skin. At this point every either held a magazine in front of their face, closed his eyes, or turned away. The producers of this video had everyone attention up till that point. They simple did not know when to stop so they lost their viewers. A little self control would have helped these people.