True that, i told a woman colleague years ago to keep details of bullying off a manager,Also the " innocent bystanders ", who`ve stood by and done nothing, tend to bottle it when they think they`re getting dragged into something and adopt the every man for him / herself attitude too
it was bad, really bad ,had her in bits.
After a few months she went into HR with it, two of her workmates had witnessed it , both left her high and dry.
I was on holiday and one of them who i gave a lift into work phoned me and said his name was mud and nobody was talking to him, i said i don't blame them you have complained about him before yourself, his reply was well he would have come after me if i said anything.
I just said he will anyway because he thinks your a gobshite, get yourself into work yourself and don't talk to me other than about work.
The woman was thankfully left alone, left shortly afterwards to change careers,
taught me a lesson i can tell you to many only interested in themselves.