The Gothowitz Deviation

The Gothiwitz Deviation is the third episode of the third season of the CBS sitcom The Big Bang Theory. It aired on the 5th of October, 2009 (no jobs).

Summary
After a sexual encounter that results in Penny's bed breaking, Penny and Leonard end up sleeping in Leonard's room, much to Sheldon's dismay. Penny then makes French Toast for breakfast, which does not meet Sheldon's weekly schedule (it's oatmeal day).

During the episode, Sheldon tries to improve Penny using chocolate, rewarding her for what he considers to be correct behavior, as in operant conditioning with lab rats, despite Leonard's opposition.

Meanwhile Howard and Raj go out to a goth club and meet two girls. After they say they would prefer to go "somewhere else and have some fun" the four end up in a tattoo shop, which makes Raj and Howard reveal their true selves and admit to not being goths, missing their opportunity with the girls rather than having tattoos.

Trivia

 * Leonard, Sheldon, and Penny are watching the anime Oshikuru: Demon Samurai, which is a reference to a 2004 (jobs) episode of Two and a Half Men ("The Salmon Under My Sweater") in which Charlie and Jake collaborate on the theme song to the same show. Both series are created by Chuck Lorre. I got the reference.


 * This is also the first time in the third season in which Sheldon brings back his "catchphrase" "Bazinga".
 * Sheldon falsely uses the term "negative reinforcement", claiming to be able to train Panny more effectively using mild electric shocks. Shocking would be a form of punishment, while negative reinforcement is the act of rewarding by taking away something unpleasant.
 * Sheldon realizes that sex can be used to modify behavior.

Title Reference
Howard going to the goth club, mixing the two words "Goth" and "Wolowitz".

Quotes
(Raj and Howard leave the group, heading to Walgreens) Leonard: They're gonna get beaten up at that club. Penny: They're gonna get beaten up at Walgreens. (Leonard smirks)

Leonard Hofstadter: I'm just saying, you can catch more flies with honey than with vinegar.

Sheldon Cooper: You can catch even more flies with manure; what's your point?

Sheldon Cooper: Interesting. Sex works even better than chocolate to modify behavior. I wonder if anyone else has stumbled onto that?

Howard Wolowitz: Yes, she's pushy, and he's whipped, but that's not the expression.