Family Tree

A man, who just got tested of HIV called his mom:

MAN: Mom, I have tested positive.

MOTHER: HAAA! Don't come back home my son, DO NOT COME BACK HOME!

MAN: Why mom, I'm still your son for Christ sake?

MOTHER: You see my son, if you come back home, then your wife will be infected. From your wife to your brother, from your brother to our maid, from our maid to your DADDY, from your daddy to my sister, from my sister to her husband, from him to me, from me to the gardener, from the gardener to your sister. And if your sister gets infected, then the whole village is in trouble! So in the name of God don't Come back.