On favors owed after driving my dad over to the dealership to drop off his car at 10 o'clock p.m.

Rashaka: "Someday when I really want one, you'll give me one of the cold Diet Cokes in the fridge with your name on it. Maybe not this week, maybe not next week. But someday."
ShakaDad: *looking dubious* "Better ask first. You have a long history of abuses with the cold Cokes."
Rashaka: "Don't worry, I'll ask! Think of it this way: I'm Rumplestiltskin, and you owe me your firstborn Coke."
ShakaDad: "Anytime you want to tally up favors, we can sit down and..."
Rashaka: "Whoa, whoa...cold Coke is in it's own special category, I think."