"You use the manual when you set these things up," he added. "Don't go depending on your memory. You can play some pretty dirty tricks on yourself that way." He looked thoughtfully at the array of coils.

"And don't go using any gravito clamps around these things when the back's off. They don't like it. It makes 'em do nasty things." He flipped his wrist up, looking at his watch.

"All right, that's it. Let's go eat." He snapped a cover back in place and swung down from the catwalk.

Stan turned away. No tools to put away tonight, he thought. Didn't need 'em all afternoon. He smiled. And no column to fall into, either. This was the weekly free night.

He walked out of the shop, following a group of prisoners through the archway into the main yard. Another small group followed him, keeping a decent interval behind.

Someone drew a sharp breath.

"Hey, look! Over there."

Stan followed the direction indicated by a dozen abruptly turned heads. Vernay was lounging in the shadow of the archway. He smiled tigerishly and sauntered toward Stan. The group of prisoners melted away, to form a rough semicircle. From somewhere, others were appearing.

"So all right, little rat," Vernay said softly, "you've had a lot of fun these last few days, eh? Big man around the yard, huh? Yeah! Well, it's going to stop." He massaged his right hand with the thumb and fingers of his left, then stretched out his arms, flexing his fingers.

"Real smart little fella," he added. "Knows all kinds of little tricks. Got anything to say before I open you up for inspection?"