I was at the sunny British seaside to observe a research project. A fairground ride/obstacle course/car wash style experience had been built into the cliffs. Animals would enter the tunnel and would emerge at the other end with all their unhappiness removed.

First, a killer whale swam through and went back to the ocean. Then Spike Milligan sent a dog through. As I watched it retreat into the tunnel I was transfixed by the fact that the  markings on the dog’s rear end looked exactly like a face. “That dog looks as if it’s running backwards”, I said to Spike.  “Then THAT’S the dog I want”, he replied.