Zayd: Mom? If you water your chest will you grow chest hair?
Zayd: If you water right here (he points to upper lip) will you grow a mustache?
Me: Uh... no.
Zayd: Why not?
Me: Because you aren't a plant growing in the soil with sunshine.
His eyes grow wide.
Zayd: What if you took some hair and put it in some soil and watered it. Would it grow?
Zayd: How do you know?
Me: I just do.
Zayd: Have you ever done it before?
Zayd: Then you don't know for sure.
Me: I suppose.
A devilish smile comes across his face as he stares at my head of hair.
Zayd: Can I have some hair?
Me: Go grow your own.