Big Bang Theory - Conditioning Penny

As fans of the Big Bang Theory TV Show (most notably my wife and oldest daughter) are no doubt aware, within the "The Gothowitz Deviation" episode (Season 3: Episode 3), there is a short segment where Sheldon tries to train Penny using Operant Conditioning.

There are a number of different versions of the clip at YouTube and other video sites. In my mind (Kent) the best version for a high school class can be found at http://blogs.cornell.edu/gp08ha1115/files/2010/04/Big-Bang-Theory-OB-21.mp4