Years ago I went out to dinner with my father, brother and my brother's wife. We went to a fairly nice/well known restaurant, one with an open kitchen, and got seated pretty near the kitchen.
So, things are fine for a while until our food comes out. My father's food never arrives. First, this is a nice enough restaurant that it's weird for them to deliver food separately anyway, but that's generally okay with us as long as it's not a huge gap. Despite assurances, though, his food isn't coming out quickly.
So, the rest of us are sitting there with our food, not wanting to be rude and eat, and 10 minutes pass. We get the waiter back and they apologize and say something about the kitchen. Now, again, the kitchen's right near us, so we can see as the waiter goes back and has a heated discussion with the person finishing plates. The waiter comes back and assures us it will just be a minute more.
5-10 more minutes pass, and now it's at the point where the rest of us have rapidly cooling food, and it's getting a little ridiculous, so my dad calls asks for the manager. The manager comes over, my dad explains the situation, complains that the rest of us are going to have cold food, and asks what's going on. The manager just explodes at my dad, saying he doesn't understand how to run things, don't tell him how to do his job, saying he's being unreasonable. It's super weird, because my dad was actually really calm and it had been at least 20 minutes since the rest of us got our food.
So the manager goes back to the kitchen, has another heated discussion. That turns into yelling that the whole restaurant can hear, with the guy finishing plates gesticulating wildly in our direction. Then, the manager grabs a plate, comes out and basically drops it in front of my dad, saying "here you go, happy?" Well, the thing was it wasn't even the right order, it was a completely different dish. My dad just bursts out laughing, which made the manager even more angry.
Finally, the waiter steps in, pulls the manager aside, and explains to him exactly what's happened, and it's like a switch flipped. The manager got super nice, very apologetic, fixed things, and was generally great after that.
It must have been that he got bad info from someone and thought we were being unreasonable, because otherwise his behavior just made no sense.
TLDR: One person ends up waiting 20+ minutes longer than everyone else for food only to be yelled at by the manager and given the wrong dish.