A young boy walks up to a prostitute with his piggy bank.

And he asks "I want you too have sex with me and give me AIDS."

She asks "Why do you want AIDS?"

And he responds "Well, if you have sex with me and I go home, later tonight the babysitter will have sex with me, and I'll give her AIDS.

Then my father will have sex with her instead of paying her and she'll give him AIDS.

Then my father will have sex with my mother.

Then my mother will have sex with the mailman, and that's the mother fucker who ran over my pet frog!"