A white guy goes into a bar and sees a black bartender. He says, "yo, nigger, get me a beer!" The bartender says, "that's very rude. How would you like it if I talked to you like that?" The white guy says, "let's switch places and see!" So they switch places. The bartender says, " yo, cracka, get me a beer!" The white guy says, "sorry, we don't serve niggers here!"