Me: Do you know who has the next birthday in our house?
Nas: Um... who?
Nas: Why do you want to be a grandma?
Me: A grandma? I'm not old enough to be a grandma?
Me: Because I will be a grandma when my boys grow up and have babies.
Nas: But I have a baby, Maru the cow.
Me: So, he's my grandson?
There you have it - I'm officially old. I have my first grandcow.