What I see far more often, and find mildly irritating, is when someone seated in row 1 or row 2 boards late and has to stow their bag (steamer trunk, but that's a different rant. Hint - "Leave *something* at home, people!!!") several rows back. As soon as the seat belt light goes out, they bound out of their seats and plow their way back to get their bags.

Ok, I get it. Sort of. I don't arrange my life so that every second is accounted for, but you do you.

Where I have a problem is that when they pull down their bag, they immediately turn around and force their way back up the aisle to "their rightful place".

Get your bag and stay put. Inconveniencing everyone *twice* is just rude and selfish.