My wife and I were at a formal event dinner banquet related to her med school. We were in a small group chatting: On one side an Air Force ROTC med student in his dress uniform and his wife. On the other side another med student and her Navy NCO husband in his dress uniform. I remember distinctly that the Navy NCO kept politely saying “sir” when he addressed the Air Force ROTC.
The Air Force officer mentioned that he got a “light” version of basic training. The Navy NCO said nothing. His ROTC’s wife added that it must have been petty light, because she remembered a call from him where he mentioned that they ran out of ice cream.