We can have laws or corporate rules or whatever but at the end of the day people just have to stop being so lousy to one another. Obviously this means there shouldn’t be people screaming at each other but it’s a lot more than that. It’s also the little things: don’t cut in lines, don’t be a jerk in traffic, don’t eat stinky meals in the middle of crowds, don’t get in peoples’ way or be generally oblivious to what’s around you, etc. These are all the “paper cuts” of the mind, gradually aggravating people day after day until they just can’t handle it anymore.
Depression is something that colors the entire world dark and gray. It turns a bunch of normal remarks into thousands of little papercuts. No one is right or wrong here, but for a depressed person, understanding how depression colors the world can be useful.
Actually, I think folks would talk behind your back and wonder why you put up with the abuse - but they'll generally stay out of it. If you are lucky, they'll call the cops for a checkup.
If you give yourself paper cuts, folks will still talk about you. A few will offer an ear if you need to talk. And some folks will decide to shower you with complements so you stop ruining your body with scars.
Unfortunately, mental health is more horrid than that. It is like watching everyone get a papercut and go on with life, while it cripples you for a day.