Originally Posted by
Kiwi Flyer
[b]
Onboard my seat was occupied as someone had decided they liked my seat better
The crew didn't want to move the passenger to their proper seat so I ended up taking their seat. Of course they had put their carry on above their seat so there was no space for mine, which ended up in a closet.
So you did not insist on having your actual seat?
Then the other passenger got away with this behaviour, and next time,
with someone else, will do this again.
In other words, you have reinforced the behaviour.
Had you insisted, the FA would have given over and moved him/her.