They mutter darkly about the grandfather paradox, where you would travel back into the past and kill your grandfather.
Meanwhile, gypsies mutter to each other about the return of an ancient curse; shadows loom.
She speaks in little growls and whispers and shrieks, but every mutter has an opera-soaked, theatre-tuned richness.
As the man pays the bill, I overhear him mutter something about chilli before getting up and going home.
I was tempted to argue the toss (or mutter something rude about counterfeit goods).