thewaterballoonist

He said "Push this button with your right hand."

I replied in the affirmative and he directed me to depress one particular button with the index finger located on my right hand.

The right hand isn't always necessary. For example, one day my boss came to me. He said, "Joe, are you busy?" I said "No." He said push this button with your LEFT hand.

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I'm not sure of the overall numbers. If I have any free time at work, my boss usually comes to me and says, "Joe, are you busy?" I have to answer "No," and then he gives me an assignment.