Plane Wash
You are the chief airplane washer at the company hangar and you:

(1) Hook high pressure hose up to the soap suds machine.
(2) Turn the machine "on".
(3) Receive an important call and have to leave work to go home.
(4) As you depart for home, you yell to Don, your assistant, "Don, turn        it off."
(5) Assistant Don thinks he hears, "Don't turn it off." He shrugs and             leaves the
area right after you.
(6) Refer to attachment for the results.

As with any occupation, make sure personnel have a clear understanding of what you
are communicating! Actually happened! Now see the picture below of the
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