In Which Rock Serves a Purpose (or Tries To)

I had a trail ride scheduled this morning with local blogger Christine.  We've been trying to ride together for a while but couldn't coordinate our schedules and have the weather cooperate at the same time.  The deal was that she was going to ride her Friesian out my way with a neighbor, and then we'd all explore the trails together.  I saddled up Rock and got a text message that they were on