Good Shopper Cashier: How old are you?
Seth: ...22.
Good Shopper Cashier: [looks skeptical for a second, then smiles] You certainly are! That'll be 80 dollars.
Seth: Oh! Okay!
[pulls money out of his sleeve]
Seth: Pssha! Thank you kindly! Will that do?
Good Shopper Cashier: [examines the bill: a crisp 80 dollar bill] It most certainly will! Thank you, Seth!
Seth: Hey, thank YOU!
[double high-fives cashier]