THE GOTHOWITZ DEVIATION     09/10/05

SHELDON TRIES TO CONDITION PENNY WITH CHOCOLATE TO CHANGE HER BEHAVIOR -- Sheldon (Jim Parsons) grows irritated by Penny's (Kaley Cuoco) habits and begins rewarding behavior he approves of with chocolate, treating her like a conditioning experiment. Leonard (Johnny Galecki) catches on and is disturbed by the plan, but Penny eventually plays along and uses it to get Leonard to assemble her new bed. Elsewhere, Howard (Simon Helberg) and Raj (Kunal Nayyar) dress as goths and go to a nightclub, where two women take them to a tattoo parlor before the act falls apart. TVPG