The Supreme...ly bored

If I remember correctly, these were the series of events that led up to the idea of forming a barbershop quartet.
First, I should say that we often treat any song like we're listening to it alone on a car radio. We join in regardless of whether or not we know the lyrics or can sing in the given key. I'm not saying we're bad at singing, I just wanted to point out that if a song we know starts up there is a good chance that at least a few of us are going to join in.
Suzanne, Jackie, and I are in our common room and, like almost every time something truly weird happens here, Patricia is absent.
It's quiet.
Suzanne starts to whistle a tune and I join in. When we finished the phrase I announce that I had always wanted to start a whistling choir (laugh if you want to but doesn't that sound like fun?) We laugh at this notion for a while.
We start talking about a capella, choirs, scatting, and barbershop quartets. I start to pull up youtube videos, one of which is of the lawyer barbershop quartet that appear in a few episodes of Scrubs wherein they sing the Beach Boys' "Barbara Ann." We start singing, as usual, but this time we see if we can harmonize.
Long story short, we have almost perfected a rendition of "Barbara Ann" in four-part harmony.