Hope this doesn't sound prudish, because I am not - I drop the "F" bomb all the time. But there was a time in America (maybe 50 and more years ago, now) when people knew not to use swear words in "polite" company. Being 61 years old, my grandmother was born in the 1890s, and was quite Victorian. You not only couldn't swear around her, but there were other words that she considered crude. If I said, "That stinks," she would gently reprimand me with," Not acceptable! Say it smells bad, dear."
The point is - we knew there were times you had to control your...uh...vocabulary, whether or not you were upset or angry. I would think it would be a good idea for those in broadcasting to try to renew that sensibility - to protect themselves - and be aware they should never use a cuss word anywhere near a microphone - on or "off."