A little paper bag doesn't feel well, so he goes to his Doctor and has a blood test.

A week later he returns for the results. "I'm afraid you're HIV positive" says the Doctor. "No, I can't be - I'm just a little paper bag" says the little paper bag. "Have you had unprotected sex?" asks the Doctor. "No, I can't have sex. I'm just a little paper bag" "Have you injected drugs, or shared a needle?" asks the Doctor. "No, I don't do drugs.

I'm just a little paper bag" "Have you had an injection or a blood transfusion abroad?" asks the Doctor. "No, I don't have a passport. I'm just a little paper bag" "Then there is only one explanation. Your mother must have been a carrier..."