i, too have seen people with mental illness get relieved from work, as well as people who are black, and women, end jews, and catholics, etc. the nice thing about
being bp is that it doesn't usually show.
i didn't know that i was bp when i was working. i spent most of my career in in computer industry, where everyone back then was a little bit crazy. i was known to work all day and party all night. then work quietly and go home and sleep. also, when a new system was being inmplem,ented, everyone would hang out at the near-by pubor watering hole "just in case." my behavior was screwy, but accpetable with this set of crazies. but there is a broad range of behaviors which are considered "normal" and an even larger range that are considered "ok if only marginally acceptable".
under us privacy law, if you employer provides your health insurance, you employer's insurance people may know your diagnosis. you supervisor and co-workers cannot. if there is a breach of security and they find out you can retire off of the law suit. if you employer does not provide health insurance, it's none of his/her bleedin' business.
tell an employer? i don't trust any of them.