At an improv comedy show on Sept 20, 2017, I performed a fully
improvised song, addressed to an audience member.  He said his name
was "X", and he didn't like know-it-alls.  He requested a *country*
song style.  I was also told to work the word "flabbergasted" into
the song somehow.

Here's what I came up with (the second half, at least; the first
half wasn't recorded).  It wasn't brilliant, but hey, it was in the
country style, it rhymed, it told a bit of a story, and it used all
of the suggestions I got, so considering that it was 100% made up on
the spot, it could have been worse.

Recording at:  http://probability.ca/jeff/nonwork/improvsong2017.mp4

  [...]

  I brought it home to you, my dear X
  I thought, who knows, maybe we'll have sex
  But you really weren't very sure
  You wanted us to keep it nice and pure.

  So I tried to impress you with everything I knew
  You picked up tomatoes, and said you're through
  You said, you don't know the things you think you do
  So I'm not going home with you

  Well, X, I was quite flabbergasted
  I was really -- my head was blasted
  I knew I would not be with you
  I had nothing left for me to do

  And that's the story of me and X
  It's ironic, but now he is my "ex"
  We'll never see each other again
  Still I'd rate our date an absolute perfect ten


Later, I thought I should also have sung:

  Now I am already feeling better
  I have a friend whose name has just one letter
  It is such an easy one for me to spell
  Unlike my other friends whose names are hell