The fastest way for a sailor to ruin his day was to address a Marine, Army
or Air Force officer as "Mister", though.

When I was in the marines, late 40s to mid-50s, lieutenants were
commonly addressed as "Mister." But only with the surname added,
never just plain "Mister."

IIRC, Midshipmen and perhaps Navcads in flight training were sometimes
addressed as "Mister" without a surname added.

However, it would have been a mistake to address a marine captain or
major as "Mister," even though the naval equivalents, lieutenant and
lieutenant commander, are (or were) Misters.

It was also a custom, at that time, to address officers in the third
person. The first time an enlisted man said to me, "Would the
lieutenant like a cup of coffee?" it took me a few seconds to realize
he meant ME!

vince norris