A few years ago, while visiting relatives in Silver City, NM, I was driving on a divided four-lane highway when I noticed a funeral procession headed my way. Instinctively, I began to slow down out of respect; my dad was a funeral director, so it came naturally in our family. But it wasn’t necessary to be on the opposite side of the median from the procession. So I sped back up, and no other vehicle even slowed down.