I gave up swearing years ago, along with a few other choice words, in the real life world. Took only a week, no big deal. You'd be amazed at how many people go "really?" like they couldn't do it. Or maybe they can't.
At least people know that when I'm with them, they might have to apologize for something I say, but NOT the way I say it. Plus, people are more likely not to get distracted from your point if you're swearing like you could blister the paint off a battleship.