Lordy, when I'm in the right mood, I cuss like a pirate. So sure, lots of times, in quiet conversations with friends at the hall, I'd drop an F-bomb or something similar. I don't think I was ever overheard by anyone else; at least, it was never mentioned to me.
There used to be one brother I really liked, who used to lean close to my ear and whisper incredibly lewd, salacious stuff- and then go on talking, in a normal voice, about how uplifting the meeting had been. Problem was, I was too innocent at that time to fully comprehend what he was talking about much of the time- I was always squinting at him and saying "Huh? Why would you want to spank me?". Oh, the missed opportunities!