What's wrong with people?! Ughhhh - this girl put her dirty bare feet on the armrest that DOESN'T belong to her! So the guy who was sitting in the seat where the armrest was decided to do something about it!!
He decided to drop some water on the foot and you know what, I would have done the SAME THING!!! Eww don't put your dirty foot up like that - especially when we're in the middle of a pandemic!
The most I've done on a plane was I took off my shoes, but I had socks on.