Mystery Diners - Season 5 - Eps 11: Coupon Coup
The owner of The Hangout in California notices a large increase in the number of coupons used. The Mystery Diners point to the manager who isn't doing his job and leaves work to go surfing in the middle of his shift and one of the waitresses who is selling coupons to her co-workers from a blank roll of register tape. During the confrontation, the manager and waitress are both fired. The narrator revealed that the former manager has apologized for his actions and frequents the restaurant as a patron. The waitress has found employment elsewhere. All other problem employees have been terminated and replaced with new employees.
About Mystery Diners

Title: Mystery Diners
First Air Date: 2012-05-20
Last Air Date: 2016-04-20
Status: Returning Series
Rating: 1.5/10 (from 11 votes)
Language: EN
Seasons: 11
Total Episodes: 136
Network: Food Network
Genres: Reality
Production Companies: T Group Productions
Synopsis
What happens in the food world when a bad employee starts to take down an otherwise thriving establishment or when restaurant owners suspect someone of not doing their job appropriately? They call in the Mystery Diners. These undercover operatives go into restaurants, bars and food service establishments with hidden cameras to find out what's really going on when the boss isn't around.