still got scars down my back from an old girlfriend (primary school teacher who was previously a dancer in the Paris Crazy Horse show). She seemed to believe that I needed encouragement during sex by digging in and lacerating my back......after a night with her the sheets would be covered in blood, MY blood. No, long nails are a bloody turnoff for me now. Twenty years on, if my back gets suntanned you can still see the cut marks. Causes some awkward questions sometimes.........