Actually, Steve is right. I would never have the guys from work over in polite company at my house without issuing a disclaimer first to the other guests that the air will be filled with all sorts of profanity, in which, in some cases, the word eff you see kay will be uttered every second or third word.
I think profanity, in and of itself, can be a wonderful art form, especially in how you manage to lace profanity into your ordinary conversations, especially in such a manner to induce the most comical reaction. I'm also quite careful when not to use it, like, when my mother-in-law is around, along with her family. It's easy not to do since they don't use those words themselves.
Back when I was dating my last pain in my ass girlfriend, we used to go shopping with her sister and her niece, and every so often I'd get caught interjecting bad woids into the conversation, and they'd get so mad, and I'd have to apologize. You should have seen their reaction when I told the niece, "I want you to know that your mom and your aunt use this language all the time when you're not around." You should have also seen their reaction when the niece replied, "I know."
I never could stand phonies anyway.
Where did I learn these words from? My mom, God bless her. My dad's family. Profanity is life. Even presidents use profanity.