If you eat regularly to fast food as Mac Donald's, you can use this technics to have special advantages :
- Use some coupons from other firm (Burger King, Taco Bell, ...) and say that if they don't accept, you'll go to eat in that other restaurant.

- If you feel you waited too long, ask some compensation (a cheeseburger or a coffee).

- If you want to be sure to ahve a fresh and hot burger, ask something special about your burger (e.g. ask your burger without onions or salad). They will do your burger especially for you.