Behind him, the driver muttered something predictable, then moved off.

"Hell of a place for a drop," the driver muttered.

The driver muttered something under his breath as he proceeded to turn right at the corner.

The tall artillery officer shouted, and a driver muttered under his breath, "Damned fool!"

Every single driver who passed her scowled or muttered something.

The driver muttered a bit, looking doubtfully at her, but the grandmother sat calm and dignified, ignoring his eyes.

"The last couple had a fight in my cab wrecked it," the driver muttered sourly.

The other driver muttered something and then each got back into his car and traffic began to move again.

Our driver muttered, 'She said there would be days like this,' and just then the truck in front of us blew up.

"Not here yet, by the looks of things," the driver muttered.