Recently I travelled to apparently the UK's least used rail station. I arrived at Darlo from King's Cross on the class 91 on an advance, so needed to buy the local ticket at Darlington itself. Having not finding Teesside Airport on the ticket machine, I went to the ticket clerk. I knew I had to get the 1135 from Darlington- Eaglescliffe to double back to Teesside Airport. However the ticket clerk in effect sold me a CDR between Darlington and Eaglescliffe, but being the only way to get to Teesside Airport at that time is to double back, should a single ticket been sold just to Teesside Airport instead? Just a query, the journey has been completed and I visited Teesside Airport as planned, it is just that I have no ticket saying "Teesside Airport" as the destination on it (which I wanted to try and boost the station's patronage a bit).