My time is valuable (Part Deux)

In a great factory one of the huge power machines suddenly balked. In spite of exhortation, language, oil and general tinkering it refused to budge. Production slowed down and the management tore its hair.
At last an expert was called in. He carefully examined the machine for a few minutes, then called for a hammer. Briskly tapping here and there for about ten minutes, he announced that the machine was ready to move.

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