A computer technician went to check on a problem at a very expensive mainframe.
After analysing it extensively, the technician reached for a small screwdriver and turned a tiny screw by 1.5 turns.
The computer was turned on and was back in perfect shape.
When asked for the cost he said it was £1,000.
The client was amazed despite being happy with the technician’s work and demanded a detailed invoice for the charges, to which the technician agreed.
Next day the invoice arrived and read:
Turning the screw… £1.00
Knowing which screw to turn… £999.00
It isn’t what you do, but what you know.