Here is one to consider, I was sitting in the 'B' and M'lady in 'A'. This was my view of the 'C' in a 737-800. I think this constitutes obstruction. I told M'Lady that, if we had to make a run for it to be ready to jump on the seat to avoid it. Yes, I should have drawn attention to it but decided not as the bag was in full view and it was clear what would happen.
This was, as you can see, on full fare. Taken a couple of years ago.