...then fails to follow through.
Scene: I am sitting on the couch when my phone rings.
Mrs. Hatrack: Guess what I'm wearing and what I'm playing with.
Me: You should know that WinnieTheWoot is sitting at the other end of the couch.
Mrs. Hatrack: I'm wearing my new hearing aids and trying to adjust the sound levels.
Me: That wasn't nearly as interesting as it started out.