Little Johnny’s teacher was asking all the kids in the class what their parents did for a living.
Little Mary got up and said, “my dad is a pilot, and my mommy is an architect. “
“Great, “said the teacher.
Michael got up and said, “my dad is a doctor, and my mom is a housewife. “Good said the teacher.
Johnny was last in the class and when he got up he said:
“My Mommy, she is a substitute. “
Knowing better about his background and always striving to correct the kids, the teacher said, “You mean she is a prostitute?”
“No”. Said Johnny, “my sister, she is the prostitute, but when she does not feel well, my mommy substitutes. “
This joke is included in the Black Book of Jokes. You can order it from here.