What goes around comes around

Hello, followers and others, who randomly stumbled on my blog!
I had planed an entierly diffrent idea for writing today. I wanted to type about the absurd nonsense of daily horoscopes, but after a few fail attempts to start transforming my thoughs on that topic into words on my computer screen, I gave up. Hopefully I will feel less blank-minded about that idea tomorrow.

In meanwhile there`s an other topic I feel I could write about today. It`s short of a continuation to the post about karma.

What goes around comes around
It`s a proverb.
It basically means that a persons actions, whether good or bad, will always have consequences for that person.
In my last post I explained what is the popular misconception of karma, well that is the right conception for what goes around comes around.
While karma is something one can only believe or not believe, this proverb can be determined to be true or untrue.
I personally find it quite well-grounded. Surely there are exceptions, but commonly, this proverb seems to be true.
For an example, let`s say there is a random group of people, let`s say coworkers. Naturally, not all of them get along. They have their little conflicts, the backtalking - the normal stuff. Then a new coworker is hired. Let`s make it a her. Not that it matters. She is not a suck-up, but she acts good with everybody, tries to get along and is just bursting with positivity. Then naturally the others feel like they have to be good against her too. They would feel like it would be inappropriate to act any other way. And that`s how it works.
Of course, it works the other way around too. Violence begets violence.

So what do you guys think? In your experience, is this saying rather true or untrue?