I drove off without paying for fuel...!
T`was due a combination of circumstances, at the time being unused to using card payment, and my good lady who did all the shopping, unusually asked me to buy some milk when heading out to buy petrol, I filled up, picked up the milk and paid by card.... A day or so later I had a friendly call from a policewomen, who suggested that I had not paid for fuel, totaly confused now it took a minute or two to realise what had happened, The young lady suggested that I best revisit the petrol station and make good my bill, which I of course did...

I suspect the police realised that there must have been a senior moment involved...?
My guess is that if one intends to fill up and drive off without paying, to do so in a Morgan with a simple to remember numberplate, may not be the best plan.... Duh..!