Re: "a gentle word will probably achieve more than the f-bomb"
@SolidSquid. Exactly this. The F-Bomb isn’t necessary, and its use is indicative, perhaps, of a nervous breakdown. And yes, have an upvote, it’s use is very bad management.
But, after recognising the problem, and fixing it, it should be possible to come back from the brink - and be good at the job again.