Safely home from a 2-week vacation.
Almost not.
At the airport baggage claim conveyor I stepped into a gap between people to see if I could see a bag. The guy behind me started yelling at me.
I turned around and encountered a red-faced, wet-eyed man in his 30's ready to kill me. Apparently I blocked his view of the conveyor.

I stared at him.
Locked eyes for 5 seconds to show I wasn't afraid of him.

I turned around and ignored him, showing him my back in case he wanted to sucker-punch me.

At an earlier time in my life there would have been a fight.

Reading Marcus Aurelius gave me just the guidance I needed.

Some people have serious problems.
Those problems are not your problems.
Don't make them your problem.