Mostly we're motivated to control ourselves in public. Mostly. At home the motivation is much less clear. At home there's a bit of a lab for bad behavior. You can test things out without terrible consequences. Or maybe the consequences are there, but they are deferred, buried, much harder to detect.
People are considered as areas that resist light, mistakes in the air, collision sweet spots. At the time of this writing, the whole world is a crime scene: People eat space with their bodies; they are rain decayers; the wind is slaughtered when they move. A retaliation is probably coming. Should a person cease to move, she would cease to kill the sky, and the world might begin to recover.