Norman Stanley Fletcher!

No. These are not the keys to prison cells as alluded to by my 'Porridgesque' title. However, they reminded me of the sounds of the titles in the introduction of this comedy classic tv programme featuring the warm clever humour of Ronnie Barker.

As a youngster this sound and vision instilled the desire never to do anything to risk hearing the rattling of those keys and the slamming of the prison gates.