Smack-a-Ho
[NOTE: This joke must be told out loud to someone -- preferably someone with a good sense of humor...]
A pimp walks up to one of his hoes, and asks for his $30. The ho says it was $20, so he smacks her and yells, Don't correct me, bitch!
The pimp then goes to a second ho and asks for his $30. The ho says she thought it was $20, so he slaps her and yells, Don't correct me, bitch!
The pimp then walks up to a third ho and asks for his $30. The ho thought it was $20 so, again, he smacks her and says, Don't correct me, bitch! Finally, the pimp walks up to his fourth ho and asks for his $20....
[At this point, your friend should stop and say I thought it was $30, so you slap him/her and yell Don't correct me bitch! If the friend doesn't figure it out, go a few more rounds. If they still don't get it, tell 'em what's supposed to happen while ho-smacking them.)