Morty

(eating lunch with Helen and Jerry) Another fine meal, and now for my Wizard tip calculator.

Jerry

Dad, it's got lots of other functions.

Morty

Don't worry. I'll get to the other functions. (trying to open it) I can't get it open.

Helen

Yay! Jerry got it open.

Morty

The service was slow. And God forbid they should refill the water. How does 12.4% sound?