Fastidious Vincent washed his hair at home and then went to a barbershop for a haircut. The barber explained that shop policy is to shampoo each customer’s hair before cutting, regardless of how recently it had been washed. Somewhat annoyed, Vincent submitted to the shampoo, after which the barber cut his hair with great skill. After the haircut, the barber dried his hair and complimented Vincent on his appearance. He added, “That will be $18; $3 for the shampoo and $15 for the cut and dry.” Vincent did not tip the barber.
Required
Identify the nonvalue-added activity described. How could the barber modify this nonvalue added activity?