Being polite and helpful costs nothing, and other people using the outlets while you are not is not "hogging". You're just annoyed that you lost your upgrade and ended up with a middle seat in Y.

I'm wholeheartedly sure that if you wanted to use a socket, you'd have worked out a way to share with them, so I find this thread a disappointing reminder of how people can make their own lives so much more crappy than they need be.