Brynn's joke

Brynn made up a joke today:

Mom, there are three kinds of cell phones!
(Me, really? What are they?)
First, there's regular cell phones like you have 'cause you're a doula.
Then, if you're in jail and have a phone, it's a cell phone because you live in a cell.
And the third kind, is when you take a piece of celery and carve it into a phone! GET IT? CELL PHONE!!!

And she rolls on the floor laughing at her own joke. She cracks me up.