Seeing as I now carry earplugs in my purse because hearing other people's music on the subway give me commuter rage, this Canadian documentary is right up my alley:
To Hell with Manners: The Decline of Civility
That link is to a CTV interview. There's the predictable bla-bla about technology disengaging people, but nothing particularly insightful. I assume the film itself is better.
Don't get me wrong in my snotty righteousness, I'm getting ruder too. It does take effort to be polite - especially when someone around you is not - still, I ought to behave the way I wish others would, I guess.
Thank you for reading.
Feel free to rant (cleanly) in the comments about rude people and their litter and their lung-collapsing bass car audio systems, and their spitting and urinating INSIDE elevators...