Yes, I'm honestly like the most perfect child ever, so me saying a couple of obscenities in front of them every once in a while doesn't really affect anyone.
I mean, as a pre-teen I spewed the F word around my parents like it was going out of style, but that was just a childish act of rebellion. I have a dirty mouth, but I'd feel pretty pathetic swearing around my parents, at this point. I keep it clean.