When we finally got to the payment counter, I said...
Pam Song: *impatiently* Quickly choose one. The other one is Didi's.
JZ Picks both up. Shakes them. Thinks.
Pam Song: Quickly quickly. Can know meh what is inside just by shaking it.
JZ: *matter-of-factly* The loudest is the biggest. *passes the other one to me*
I didn't think of that. Good logic, Son!