When I was in London I wanted to go to the Crystal Palace. When I went to buy my railway ticket the agent asked; “High level or low level?” Without thinking or knowing what he meant, I said, “Low level.”
When we got out at the grounds they landed us away down in a hollow, and I had to climb a number of steep steps. When I got to the top, all out of breath, I saw that if I had taken the high level, it would have landed me right in the palace. I’ve taken the “high level” ever since.