I'm sure that happens too. I didn't really mean "shouting" to me taken literally, but it's out in the open rather than subtle behind-the-scenes manoeuvring. My experience is from academia where it's pretty difficult to fire someone without going through a long drawn-out process which is often more draining than trying to ignore the bullying, at least in the short term, and with an uncertain end. This means that pretty undisguised derision can be let slip if that person is relatively powerful.