I had two flights in the last two weeks, both of which pushed me to claim my armrest. It's pretty annoying when your neighbor "seems" to be sleeping and "accidentally" pushes your arm off. It's also frustrating to have to keep paying attention to the use of the space - if your neighbor takes his arm off for a brief second, you have to be quick to slide your arm right in there. Or, if you need to go to the bathroom - you are pretty much conceding that armrest till the next potential break.
So, why don't companies just make double armrests the norm and save us all this passive aggressive posturing? I've noticed it in Business or First Class, but the rest of us have to go elbow to elbow to claim our territory.
