$1.65 an Hour

Stuart states his salary from the comic book store.

Penny's Negative Externalities

A new part of the Roommate Agreement includes payments for all of Penny's bad habits.

Shelton doesn’t want to miss the midnight showing of a film.

Leonard thinks for $30/lb, the lobster should be good.

Raj and Sheldon partake in a series of juvenile tit-for-tat exchanges.

Amy talks about tampons which upsets the guys.

Sheldon must pay $20 to get people to take his cats.

Penny consumes a pizza without paying because Leonard does not enforce property rights.

Raj is upset about being along on Valentine's Day. Howard, however, is happy with his girlfriend.

Even though his ringtone purchase is a sunk cost, Leonard is unable to rationally select a new ringtone.