I cuss all the time.
But not around people that find it offensive. Then again, they are just words like
guccilvr said. No biggy, everyone uses them, and to be *not offended* by curse words.. is a good thing (?)
If someone tells me to "Fuck off" right in the face, I don't really give a shit. I'm not offended and will just laugh it off. Guess more tolerance to foul language gives you a lighter temper.