"Go ahead, friend, go ahead," the robot crooned, his metallic tones somehow managing to sound almost human in their urgent pleading. "Go on in. One credit can win you ten. Five can get you a hundred."

"Some other time," Alan said.

"But, friend—one credit can win you——"

"I know."

"—ten," the robot continued, undismayed. "Five can get you a hundred." By this time the robot had edged out into the street, blocking Alan's path.

"Are we going to have trouble with you too? It looks like everybody in this city is trying to sell something."

The robot pointed invitingly toward the door. "Why not try it?" it cooed. "Simplest game ever devised. Everybody wins! Go on in, friend."

Alan frowned impatiently. He was getting angrier and angrier at the robot's unceasing sales pitch. Aboard ship, no one coaxed you to do anything; if it was an assigned job, you did it without arguing, and if you were on free time you were your own master.

"I don't want to play your stupid game!"

The robot's blank stainless vanadium face showed no display of feeling whatsoever. "That's not the right attitude, friend. Everyone plays the game."