The city grew on them slowly: scattered buildings, denser buildings, taller buildings, and a red light ahead. The car rolled to a stop in zero braking time, the rush of air cut off an instant after it stopped, and Barlow was out of the car and running frenziedly down a sidewalk one instant after that.

They'll track me down, he thought, panting. It's a secret police thing. They'll get you—mind-reading machines, television eyes everywhere, afraid you'll tell their slaves about freedom and stuff. They don't let anybody cross them, like that story I once read.

Winded, he slowed to a walk and congratulated himself that he had guts enough not to turn around. That was what they always watched for. Walking, he was just another business-suited back among hundreds. He would be safe, he would be safe—

A hand tumbled from a large, coarse, handsome face thrust close to his: "Wassamatta bumpinninna people likeya owna sidewalk gotta miner slamya inna mushya bassar!" It was neither the mad potter nor the mad driver.

"Excuse me," said Barlow. "What did you say?"

"Oh, yeah?" yelled the stranger dangerously, and waited for an answer.

Barlow, with the feeling that he had somehow been suckered into the short end of an intricate land-title deal, heard himself reply belligerently, "Yeah!"

The stranger let go of his shoulder and snarled, "Oh, yeah?"

"Yeah!" said Barlow, yanking his jacket back into shape.

"Aaah!" snarled the stranger, with more contempt and disgust than ferocity. He added an obscenity current in Barlow's time, a standard but physiologically impossible directive, and strutted off hulking his shoulders and balling his fists.