What’s something that instantly makes you lose respect for someone?

I had to circle back to this one. I can't stand when people call me whining about something. I just got a phone call from someone whining about the service of a fast food place that they are at. Why do I need to know this? What is the purpose in telling me? If I called your phone right now and said Burger King messed up my whopper lol how would that make you feel 🙄