Parr wanted to jump out of the seat and smash at the man's face. But he forced himself to relax.

"You want to open the package, is that it?" he said, gritting his teeth.

"Yes, Mister Parr."

"... Then go ahead and open it."

Having expected refusal, the worker hesitated.

"Go ahead," Parr insisted. He kept his face expressionless, although, beneath desk top level, his hands bundled into knobby fists, white at the knuckles.

Then at the last possible second, as the worker's fingers were fumbling at the wrapping, Parr leaned forward. "Wait a minute. It won't be necessary to waste the parcel.... Unless you insist."

The worker looked at Parr uncomfortably.

A question of timing. Events hung in a delicate balance between exposure and safety. Parr reached for the drawer of the desk, his movements almost too indifferently slow.

His hand fumbled inside the drawer. "I think I have some of the metal samples around here," he said. His hand found the stack of gleaming dummy disks, encircled it possessively. He tossed them carelessly on the desk top and one rolled, wobbling, to the edge and fell to the floor.