It happened few weeks ago I was discussing with a colleague (name him Paul) about work, the conversation was about plans for a project we are both involved in. Paul was extremely confused and worried about the plan in order to ease him a bit I started joking around a bit. We have a very similar sense of humor, and I'm loud "unfortunately". The bantering involved swearing as well, but not insulting anyone, just using the F*** word a lot. Paul ended up laughing with me and we agreed to ask more information about the plan. It also worth saying quite few people around me were amused by the situation.
The next day my line manager talked to me in private, saying that few people around were annoyed by my behaviour because I was being aggressive towards Paul. A specific name (name him John) was mentioned during this discussion. Apparently John said my swearing was interpreted as being aggressive towards Paul, my line manager sort of threatend me by saying the next time something like this happens I might get dismissed.
As I mentioned and admitted I was both loud and I was swearing, but surely not aggressive towards him. But in any case I didn't argue and just said that it won't happen again. The strange thing is that my line manager said that he didn't ask Paul if he actually felt uncomfortable, he just relied on John's story. He said he wasn't there when this happened but I saw him looking at me while this was happening (because of the open plan office). Few colleagues also told me my line manager was actually there, and that despite my behaviour there was no doubt I wasn't aggressive.
I was suggested to let this go, and that is what I did.
Going back to John it is worth saying that he avoids always eye contact with me, he never says good morning, and when he speaks to me he's either trying to be bossy or simply talking to me in a way to imply that I'm not good, which I mentioned in the past but I've never officially complained, just mentioned. I was also told he's been saying around that I got an "official warning", in a way that sounded almost he had a certain authority.
Back to my line manager instead, few days ago a colleague left the company and he invited few of us for a leaving lunch. My line manager heard this invitation and he joined us anyway, he wasn't invited. I couldn't help to feel like being observed during the lunch time (not in the workplace and technically free time).
For example I said a sentence in greek to a greek colleague who was sitting next to me, my line manager doesn't speak greek but neverthanless he said "What kind of horrible things are saying now?" (The translation of the sentence was like "I want to be greek" and I was just trying to see if I could imitate the greek accent).
For the rest of the lunch I was really quiet until we finished eating and left. On our way back it was the three of us and we were joking around (again in the street not at work) and my manager was behind me and he said "This is fine because is not the workplace".
There are few other episodes I could mention... But you probably got the picture.
As I said if I'm told off because I did something wrong according to the company policy or common decency it's fine. However I cannot help thinking something a bit odd is happening and I feel really uncomfortable sometimes.
I'm not really sure this is a case of people not liking each other or there's something worse behind the scene happening.
Another strange thing that happened was a psychology test he gave to me and my team mates and he was expecting us to fill it. He has been working with us for three years and I've found this really strange and weird and I didn't do it. More specifically I told him "If this is not a task you're officially giving me I don't want to do it because it makes me uncomfortable".
What I want to know is if there's anything I can potentially point out to HR or to anyone else. I've never had this problems before.
I personally think John is after a promotion and he plays a bit dirty, while my line manager takes a bit advantage of his role.