This is the best bad customer service story I've had happen to me yet. So I place my order and was given my total. I drove up to the window and handed the cashier my debit card which he ran through and as soon as he had ran it through I heard him say "Oh we are out?". I wasn't sure if he had meant that regarding my order so I didn't say anything. He placed my receipt next to the terminal and handed me back just my debit card. He walk away from the window for a moment and I heard again "So we are out?". After a minute or so they handed me the bag which of course at this point I'm interested to see if I was missing something. He had stepped away from the window and as I was looking down I heard him repeat "Ah.... he just checked". At this point I decided it wasn't worth dealing with a missing order of french fries because of a few reasons. First they obviously withheld the receipt so I wouldn't have an order number to go off of or prove that it was ordered. Second they knowingly handed my order to me with an item missing and decided to just not tell me. Third the reaction of getting caught rather then realizing you did something wrong just makes it not worth dealing with them. For the approximately $2 it cost me for fries at the McDonald's up the street I just wasn't willing to deal with people who don't care. So I'd recommend a few things. First don't intentionally hide an issue from a customer. Second just because you think a customer isn't paying attention doesn't mean they didn't hear you. Lastly if you made a mistake or have an issue deal with the customer directly instead of waiting to see if you are caught. I do appreciate the experience though because every time I have a customer service class to do I now have the perfect experience to explain what poor customer service is.