An amazing number of workplace problems stem from adults failing to act like, well, adults.
I've seen workplaces that have high schoolish cliques and others where grade schoolish crudity is flaunted. People who would not tolerate unprofessional behavior for a second in technical matters can have a surprising willingness to stand by as their employees are subjected to playground pranks or bullying.
The stuff that is simply silly is not the problem. The behavior that is cruel is. Back-bitting, malicious gossip, flat-out harassment, cruel teasing, withholding information, shunning, and mean nicknames are just some of the childish conduct that rips apart teams, creates stress, and skews the moral compasses of the perpetrators. The conduct is meant to exclude and it is lethal.
I've mentioned it here before but there's much to be said for the Colorado hotel whose slogan is "Ladies and gentlemen serving ladies and gentlemen."
That is not too much to ask.