I did my high school fast food stint at Burger King. I think it's funny that he's in the "soak" sink where the dirty dishes go.
As I progressed onto better restaurants, I made it a habit to wash the sink with soap and water before putting any food into it. The only thing that gets washed at Burger King are pots, pans, and utensils. Everything else comes in a bag or a can and doesn't need any real preperation.