Penn & Teller: Bull! (2003) : 4x2

Everyone knows that prostitution is practiced throughout the land. Where it is legal - in only a few Nevada counties, prostitution is vigorously regulated and monitored by the State of Nevada Health Department. The women submit to compulsory medical tests for STDs. No one is forced to work as a prostitute. Pimps don't exist. HIV has never been detected. The women earn regular paychecks and tips. Some even get vacation and sick days. And they pay taxes! It's BULLSHIT that it's illegal for two consenting adults to have sex with each other!