Why must you always use a swear?
I don't care if a person needs to speak in an offensive way for whatever reason but if this person is that lazy that they have to resort to curse words then it's ridiculous. How many words are there in the English language? I have no idea what the answer to that question is, but usually the most offensive or dirty statements are said by people who have wide vocabularies and can really think of some horrid stuff.
I don't know about you, but I'd rather be called a "b****," any day of the week rather than, "lazy, stupid, miserable." Those words aren't dirty but they are words that hurt ME and take too much out of me.