Hey there, young stud - wanna an "interesting" tour of duty? In the late 1960's there were openings for Naval Advisers to the South Vietnamese Navy. These jobs probably offered up some unusual experiences for those who partook.
The following film was part of their indoctrination. You might note the dubbed in rotor noise during the dialogue of the air tours . . . anyway, it's Friday - welcome to Vietnam!
There are some words from the much later movie Good Morning Vietnam that you might want to keep in mind, though they don't seem to have been mentioned in quite the same terms in the Navy film: