We were talking on the train today about days of old before the clean air act when winters often had pea-souper fogs.

Chris one of my fellow travelers recalled a morning she and a friend were walking to school in a fog that you couldn't see your hand in front of your face. "We followed the paving stones by memory until we found grass under our feet and a steep hill. Strange I thought there is now grass on the way to school. It was then I realised we were standing on a roundabout".

Any stories about getting lost in the fog?

Mine was very non-PC.

If it was foggy when we had sports at school our teacher used to organise 'Fox and Hounds', the fattest kid in the class was sent out into the fog and given 5 minutes head start and then the rest of us were sent in to find him. Glad I was a skinny rake as a kid.