"Did you lose a bet?" Tifa grins, too. How bad can owing someone a milkshake be? "You can't go wrong with the usual: chocolate, vanilla, strawberry. But peanut butter shakes are good. And there's one of my favorites, chocolate mint."

The moral of the night, she's starting to think, is don't offer shakes as a special on a night when you haven't had anything to eat or drink for dinner yet.