(I serve a family of five, and they leave a really generous tip. When I am cleaning their table, I find a napkin with notes:)

Notes:

“Waiter was smiling 2%

Menus given quickly +5%

Waiter accurately told approximate time to receiving food +5%

Allergen information +5%

Substitutes offered +5%

Asked about taste only once +5%

Wished a good day +2%”

(Yep. Some customers are really calculating their tips!)