Following on from Part 37, gentlemen must always be discreet in what they're wearing. Blending in with those around you will ensure that you are comfortable in whatever surroundings you may be in and will be accepted by those with whom you may come into contact.
The accompanying photograph (Alex Willison & Joe Nasson, both former members of the same York RUFC Colts team as Tom) may go some way to explaining the Photograph in Part 37.

It is described as being a 'bad golf attire day' - thanks heavens there were no prizes to be awarded!