How big is your bubble?

A conversation overheard at the breakfast table...

Jonah: (while drawing) Jorja, get back...

Jorja: I want to see what you're doing.

Jonah: You are in my personal space.

(Jorja ignores Jonah)

Jonah: You are in my bubble...I have a very large bubble.

Jorja: Well, then, it can fit two people...