PD writes:
Profanity isn't necessarily a staple in everyone's life.
Personally I think a piece of well placed profanity adds a certain je ne sais quoi in the right circumstances.
Here is wiki on profanity. It seems that if discussion with Buz can be correctly described as "painful" then swearing may be justified on pain relief grounds
Wiki writes:
Scientific research into swearing:
Swearing and cursing are modes of speech existing in all human languages, and they perform certain functions that are the object of scientific research. Functionally similar behaviour can also be observed in chimpanzees.[6] Interestingly, the Bible with its talk about men who "eat their own dung, and drink their own piss" is far from the oldest surviving text containing strong language, as even the oldest traces of human writing include swear words.[6] One study found that swearing is not merely a common reaction to pain — it actually functions as a pain reliever, leading one psychologist to state: "I would advise people, if they hurt themselves, to swear".[7] However, overuse of swear words tends to diminish their beneficial effect.[7] Linguistic research has also shown that the physiological reactions of individuals who are proud of their education are similar between exposure to obscene words and exposure to bad grammar.[6] Swearing is a widespread but underappreciated anger management technique.
Wiki on profanity