Quote from Kirk in Blame Booze and Melville
Kirk: You overcharged me for the toast. It's only supposed to be $1. Luke: I didn't overcharge you, Kirk. I raised the price of wheat toast. It's a $1.10. Kirk: You're kidding. Luke: I don't do toast humor. Kirk: $1.10 from $1? That's a ten percent bump. Luke: It's a dime, Kirk. Kirk: I could refuse to pay. Luke: Then I'll steal your bike. Kirk: That's never worked before.