I had a lot of time off for MH (NHS) and my manager was awful. Everyone knew why I was off. Why? I thought that sort of thing was meant to be confidential.
My friends tried to get me out. Someone from my work saw me in a pub "smiling, so can't be depressed", and I was called in to discuss this with my manager in his office. Just a "chat" he said. Two people from HR were there too. Turns out it was an official disciplinarily but I was given no letter about this so I could get a union rep (I was in the union).
I had weekly therapy that I had to leave 30 min early for to attend. I was not paid for this. My manager also gave me a letter to give to my therapist asking her to detail what we spoke about each week. He wanted her to ring him each week and break confidentiality. She told me to tell him to where to go. She would not even confirm I was in therapy as it was none of his business.
He tried to same with a doctor I saw in OH, and she did give a detailed account of what we spoke about. I put in a complaint about this and she vanished from the department.
Over the years, I gave to loads of collections and signed loads of cards when people had been off for things like bereavements, surgery, cancer treatment etc. Absolute silence for me. When I went back to work people would look away when they passed me. One person actually walked away to the other side of the corridor and was brushing against the wall to put as much distance between us.
One my my friends/colleagues was off with his bipolar. He was out lots as he was in a manic episode. The rumour mill was that it was just "stress" and many people asked why he would be stressed as he was just a hospital porter.
When I was in work, he would make my life really shit. I moved home when I was employed and he refused to give the letting agency a reference... as in he would not confirm I worked there at all. The letting agency said he was very rude with them. Absolute asshole.
There is more, but he ended up in a discinplenery himself in the end for how he treated me. I was "fired" for calling in sick to do overtime. Does not doing overtime count as a sickness absence? He said it did. I still had to work for 2 weeks notice, and he moved me into a role I had never done and was shit at because I had no idea what I was doing. My last 2 weeks were awful
Sorry for the essay. There are lots of other things he did, but bringing it up now is making me very angry so I will stop there. In hindsight, I really should have pursued some sort of claim against the NHS and my manager for how I was treated.