A ship engine failed and none of the crew could fix it.
Eventually the captain suggested someone he knew who had 40 years’ on the job.
He inspected the engine very carefully from top to bottom.
After looking things over, he reached into his bag and pulled out a small hammer.
He gently tapped something and instantly, the engine lurched into life.
It was fixed and the ship could sail.
A week later the owners got a bill for $10,000.
They weren’t impressed.
“You hardly did anything, how could that cost $10,00,” one said and requested an itemised account.’
The reply simply said: “Tapping with a hammer – $2.00; Knowing where to tap? – $9,998.00.”