In
Star Trek III: The Search for Spock, there is a scene in a lonely
transporter room manned (personned?) by
Uhura and some no-name lieutenant* fresh out of the
academy looking for excitement. As
Kirk and the rest rush in in order to make their escape from
Earth, Uhura points a
phaser at her
hapless companion and tells him to go sit in "
the closet." Since there appears to be a seat in the aforementioned closet about the height of a
toilet for
humanoids, I have always assumed this was a
bathroom, though it is not mentioned as such for whatever reason--the high moral standards of the
1980s perhaps.
Yes, I am a geek.
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*The Internet Movie Database credits actor Scott McGinnis as "Lieutenant 'Mister Adventure' Heisenberg." My apologies.