Thanks everyone...I went ahead and changed seats to aisle/window
Personally I think it's pretty darn cheeky but it seems I'm the only one who's not trying to get away with it if the current seating pattern is anything to go by!

Besides which, when I mentioned this to my SO, turns out we were both thinking why the heck we'd want to sit next to the deranged individual who chose to sit next to us when they had 10 empty rows to choose from. Weird!