Usually very arrogant, angry and tired people serving customers with a Company Rules Smile on their face. Nearlly all fast food joints such as mcdonalds or Wendys have a "Just Smile" policy. Fast Food Politeness is Politically incorrect and is only used to make Fast Food places get richer and make customers come back for more food.
Fast food drive thru :"Hi May I Place Your Order"
Customer : "No Fuck You, Replace My Burger"
Fast food drive thru :"Sure, We are Terribly Sorry, Please Come Back Again"
Customer : "You So Have Fast Food Politeness, I'm suprised you didn't get angry"
Fast food drive thru :"Its Policy"