"Why's he/she so serious"
"They're ruining my vibe"
"They won't change my opinion"
They'll bombard that person with a barrage of negative attention but never directly engage with them or ask them what's wrong.
I believe that shared consciousness is real, and that malicious intent and selfish intent within that shared pool holds less potency than morally upright and altruistic thinking. The latter serves as a constant interrupter, bringing forth emotions and accountability that one may not want to deal with at the moment. It thrusts it to the front of the individual mind like "you're going to deal with me!!" Some people get offended by that and react in a number of ways: aggression, mockery, etc. This shared consciousness process becomes like a tug of war, where the side of selfishness is often loud and brash, and vindictive against their opponents, wanting the opposition to not just lose, but suffer. Sometimes the side of altruism picks up this vindictiveness, becoming like an oppressive authoritarian in the mindset. But every now and then somebody shows up on the side of morals just as loud and brash, but without the vindictiveness, and they really become a problem to the opposition, throwing them off their game. Martin Luther King Jr is the best modern example of this.