I had a weird experience on a flight the other week. I was moved from W on BA to Y on Westjet (over which there is an ongoing dispute with American) Very last row in the middle set (aisle seat) in what should have been crew rest seats.
I am sat next to a lady with her son.
The grandma is clearly 5-6 rows ahead on an aisle on the middle.
I offer to swap (not entirely altruistic of course - moving out of the last row away from the toilets and avoiding visits from grandma looks good to me).
I got every excuse as to why they didnt want to ... from 'but you paid for that seat' (hell no i didnt) ... 'but we cant ask you to do that' (you really can) ... 'but you are settled' (just my ipad and headphones). None of the discussion was about them ... all about how it would inconvenience me.
In the end they didnt swap and grandma only visited at 20 minutes to landing. Son was superb too ... slept most of the way.
Seat was horrible and uncomfortable compared to BA WTP though. Moving wouldnt have improved that but I found it very funny.