The store owner teaches a new employee the secret of business:
"You should know that you cannot let customers leave
without buying anything just because our store does not have the
brands that they wants. You must recommend- and sell them substitutes.
" One day the employee is in the store and a customer comes in.
"I want to buy toilet papers."
"Sorry. We're just out of them." Remembering what his
boss told him, however, he quickly adds, "But we do have high-
quality sand paper."
