Here's a sort of companion concept to that of known unknowns: I mean the encounter you can't understand why you didn't have earlier. Given my love of country music and my interest in classic lines like 'I don't know whether to kill myself or go bowling', it makes no sense to me that I didn't come across this one before I did, just a couple of days ago. It's a terrific line: 'Since His Penis Came Between Us'.
While I'm in that quarter, scroll down here for some Jewish Country song titles - amongst which, good are 'I Was One Of The Chosen People ('Til She Chose Somebody Else)' and 'I Balanced Your Books, But You're Breakin' My Heart'. First prize, however, to this one: 'The Second Time She Said "Shalom", I Knew She Meant "Goodbye"'.