EVERYBODY HAS AIDS!

I overheard the neighbor kids talking...

HOMIE KID: Did you know that it takes a litre of saliva to get AIDS, but only a drop of blood or a drop of sperm?
PUNK KID: No, I heard that you can get AIDS in a second, from just a drop of sperm....
HK: Yeah, that's what I said. A drop of sperm. A litre of saliva.
GOTH KID: Who would drink a litre of saliva anyway?
HK: How do you know? Have you ever measured?
PK: I'll bet my sister has.
GK: Who'd drink a litre of sperm?!
HK: NO! A drop of sperm. A litre of saliva.
PK: I'll bet my sister did.