A contact of mine on another forum is an RNR rating. At a social event on board his unit's establishment he allegedly said something that a guest (also RN/RNR) took offence to. Now the lad was not in uniform, was not being paid for the event, was not mobilised, but his CO wants to march him to the table to answer to the allegation. Can he be charged under the NDA? The alleged offence would not be an offence in a purely civilian environment, he says. (Though I can't confirm this).