A very Edinburgh bus....

I once heard Alexander McCall Smith (who was a resident in my former parish, and with whose wife I worked on a committee at RCSEd) - I heard him say "The No 23 Bus?   It's such an Edinburgh kind of bus."

By which I think he meant that any bus travelling from Trinity to Greenbank, via Inverleith and Morningside, would naturally encourage a high standard of behaviour from its passengers.....