Mystery Diners - Season 4 - Eps 4: Employee of the Month
The owner of Colombo's Italian Steakhouse in Eagle Rock, California, fears an Employee of the Month competition is the reason for a lack of staff harmony. The team proves this because of a 4-time Employee of the Month-winning waitress. She has been badmouthing her co-workers and sabotaging a waiter by throwing away his ticket orders as soon as they're printed.
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.