Nowadays, the saying "Pen is mightier than the sword is not at all applicable"..... It should be paraphrased, "the Mouth is powerful than the Sword"....
Not all words are kind to us. There are those who can wreck you and even stab your back, but of course, it depends upon the people we encounter. Great people talk about ideas. Small people talk about others and that's the bad part of uttering ungodly words.
I'm not being a Poncious Pilate, but i had my turn of being a gossip girl, and i admit. But those were moments that merely depends upon your company. It has a mixed brainwashing and a bitter moment talk. But i have to say, all are victims of meaningless jabbering.
Most of the times, the people doin' these acts are those who lacks attention...they need to have a place to be noticed... They make rumors and form a very rude remarks that injures the sufferer.
Minding your own business . . . includes [avoiding] eavesdropping, gossiping, talking behind other people's backs, and analyzing or trying to figure out other people..
All i can suggest, If you can't say something nice, shut up!