This one time [not at band camp] after I was pretty sure my parents had seen my ropes, flogger, and copy of Sex Tips From a Dominatrix laying out (I was visiting home and also got searched in the departure airport, everyone got a look at all my gear). I tried telling my mom that it was not an abusive thing, and that it was something we were trying very carefully, but she just cut me off and said, "Anything you do is YOUR business, I don't wanna know."

Good enough for me.