Give a man a fish and feed him for a day....Teach him to use the internet and he won't bother you for weeks!
As a slang expression "good night nurse" isn't one that I use much. But for some reason in a moment of boredom I got to wondering where the heck this came from. Apparently many people credit this back to a picture from the silent film era that starred Fatty Arbuckle and Buster Keaton. But since there were others before that one I have to think that there is more to the story. It appears to have been a phrase that was made popular during WW I. Now I can sleep better with that resolved.