Originally Posted by Mediachick

My good 'ol mcdonald trick:

1. Order a combo double cheese burger with bacon.

2. Get out of the restaurant, open the sandwich and eat the bacon; take a bite of the sandwich (very important).

3. Get back inside with a scandalized look on your face and tell your cashier that there was no bacon in your sandwich like you ordered...

They will give you a free one and let you keep the other since its already half eaten. I used to do that all the time in my broke years and it worked everytime.