Just had a truly distasteful experience at the McDonald's drive-through. The older Hispanic lady who served us was unfortunately quite rude and unprofessional. We ordered multiple burgers, but one was missing from the bag. We realized this almost immediately and looped back around to correct the error. Instead of a simple apology and correction, we were met with a change of story from her. She initially claimed she'd placed four burgers in the bag, then changed it to five. (We had two number 7 cheeseburger meals - one of which was special instructions that we received one of and a quarter pounder meal) Furthermore, she addressed us in a raised, disrespectful tone, talking down to us as if we were trying to cheat the system. To add insult to injury, she had us empty out all the bags in front of her to 'prove' our claim. After a prolonged discussion, she finally handed over the missing burger. While I understand that everyone can have bad days, there's no excuse for such poor customer service. McDonalds, please train your staff to handle such situations with grace and respect. It's not about the missing burger, it's about the way we were treated. We are customers, not culprits. The fries were fresh; the burgers were just fine, once we received them all. Food was normal McDonald’s standards. #CustomerServiceFail #McDonalds