thanks for the messages of support. Yes I expected to get it in the neck from some UKP folk and I'm the first to admit that what I did was amazingly foolish. But in my own defence - it's the first time such a thing has happened in 20 years of Cambridge punting. I revealed my gullibility only to warn others and watch out for this scammer who seems to roam the Tesco, Speedwell, Lucerne, Teasel way streets area. She is a slim, dark skinned girl, tall, very well spoken (told me she was a professional actress) and her scam involves asking you to meet her in one of those streets. She gets in your car and ask you to drive her to her pad. Then takes the money and has a well-trodden escape route round the backs of the houses.
Keep an eye out for this bitch who will be on those streets waiting for her next victim