Cop sees several cars parked in the dark, rocking side to side. He goes up to the 1st car and knocks on the window. A brunette rolls down the window and says: ""It's ok officer, we are just doing the Samba."" Cop goes to the 2nd car and knocks, a redhead rolls down the window and says: ""It's ok officer, we are just doing the Mambo. Cop goes on to the 3rd car and knocks, a blonde rolls down the window. Cop asks her: ""And I suppose you are doing the Bossa Nova?"" ""No officer,"" she replies, ""I'm just doing the boss a favor.""