Baker is an auditor for ABC Company. He is reviewing the expense reports that Green, a salesperson, has submitted over the last 12 months. Baker ­notices that Green’s expenses for “customer development ­dinners” consistently range between $160 and $170, and the amounts are almost always a round number. ABC Company has a policy that limits reimbursement for ­business dinners to $175 unless otherwise authorized. In ­addition, most of the ­expense reports show that Green paid for the meals in cash, even though he has been issued a company credit card that he usually uses for other travel and entertainment expenses. What kind of expense reimbursement scheme is most likely, based on these circumstances?