I found this picture of a casting call from the 1960s, for the TV show and musical legend that eventually became known as "the Monkees":
The phrase I'm asking about is "Courage to work". A friend of mine says that was 1960s American English Jargon that meant "You have to be willing to lay off the drink and the drugs during working hours". They were looking for kids who hang out at a late-nite diner called Ben Franks known as a hang-out for druggies and drunkards.
I've done a bit of google-searching and can't find any reference to the term "Courage to work". Has anyone seen this in any literature on 1960s era American slang or terminology? Got any references to this term, used in this sense, in fiction or non-fiction?