I was working today (yes, on a Sunday) with a colleague. It is just us in the office on weekends, even during the week our part of the building is usually deserted.
Because it's just us, we usually talk aloud while working. Today I was having issues with a manager in another department, and was telling her about it and expressing my exasperation. I was also telling her about a problem I've been having which was of a slightly personal nature.
A couple of hours later I find out that a senior manager was in the next room the whole time, and would have definitely heard what I said. I asked if she knew he was there, she said yes. I am really annoyed she didn't tell me, as it was obvious I wouldn't have said these things if I knew he was next door. I'm now worried I've said something and incriminated myself. AIBU to think she should have given me a heads up?!