"Psychological Officers" - Submarine

Above, 'US Psychological Officer 1970's Prototype Badge -
Never used but someone proposed this because they paid for a tool back in the 1970's. source Also, see Recent Submarine Insignia News and Information, May 2004 Update, here.
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As silent and strange as submarines are, all sorts of possibilities come to mind in connection with the unusual dolphins above.

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Omitting many, more interesting possibilities, the item may have been conceived by some insignia collector for a purely profit or bragging rights motive.

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Alternatively, we must ask ourselves if psychologists have ever been associated with submarines. Do you have any stories to share?

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More on this topic later.