Everyone who has flown on airliners before has seen people like this. I mean, okay, sometimes you make a bad call on how much carry-on luggage you can bring, especially if you’re not an experienced flyer. But I’ve seen people trying to shove 70 cm long items into 50 cm deep overhead compartments more than once, and it just boggles my mind on what kind of visual judgement some people have. Or do they expect the outer hull of the aircraft to yield?
To be honest, I’ve also tried to check in with a ridiculous amount of carry-on luggage before. That was on the flight home, after my first longer stay abroad, when I was young, dumb, broke, and underestimated the amount of crap that can accumulate in just half a year of living somewhere. I have no idea how I managed to get on two airplanes that day with an overweight backback and two guitars. But I suspect that I wouldn’t be able to pull that off nowadays!