And I don't know who it is.
Basically, someone constantly changes my chair settings on the days I leave at 3pm (and others are in the office until 4/5pm).
I have a really bad back so my chair is set at a position that helps it plus we all have to do ergonomic checks as part of an EHS thing for our desk and chair.
So it really annoys me when it has been played with and someone is doing it on purpose. Other things happen to like the cables of my monitor are unplugged and my mouse is switched off.
When I started there over a year ago there were a couple of guys who would do stuff like this and it happened so much I had to bluntly tell them to stop. And they did. But this seems to be a bit 'extra'. I obviously made the mistake of showing my annoyance when it has happened previously (and by that I mean by saying something like "who has changed my chair settings?"
But the issue is - I don't know who it is and won't be able to find out.
My manager won't be able to find out. There's no CCTV and no one would admit it if she brought it up..so what do I do?!