TFA 5: Armchair Wars

We've all been there one time or another. Perhaps you took a bump and gave up your first class seat for a middle seat in the back. Or perhaps you are the unlucky few that don't read the blogs and end up in a middle seat in coach too often. On this #TravelTuesday episode the caller asks what the "rule" is for sharing the middle seat arm rests. Who gets them? What is your opinion?