Sheldon Uses Positive Reinforcement
When Leonard tells Sheldon he needs to use more honey than vinegar on Penny, he tries an experiment where he uses chocolate as positive reinforcement on Penny. Amazing.
More The Gothowitz Deviation Pictures
Show: The Big Bang Theory
Episode: "The Gothowitz Deviation"
Characters: Leonard Hofstadter, Sheldon Cooper, Penny
Date Added: 10/06/09
Photo Credit: CBS