I've had a few subway experiences in Boston, NYC and D.C. I classify it as something I don't like to do, but I can do it. In New York City, the trains are super fast and you have to get in and sit down fast. In mid sit, the subway took off like a bullet. I fell over side ways onto a strange man's lap and couldn't get up with the centrifugal force working against me. Everyone was laughing, including myself. When I was finally upright, the guy said, "Don't worry, the same thing happened to me, but I was standing when the train took off and I was flailing my arms like a windmill all the way back to the end of the train. People laughed too." My most recent ride was in Washington D.C. I think the driver was an ex race car driver. He took off and when you rounded the curves, you were smashed against the person sitting next to you. I closed my eyes and it seemed like the longest ride, but I stayed with it and didn't get off and my fear went down. I don't know about anyone else, but in my exposure work, I tend to just jump right in and do it, before I change my mind, and because of the coping skills, I know I can get through anything. That's just what works for me, I'm not recommending it for anyone else, because it may be too fast and back fire. We're all different and we know what's best for us and what works for us. Just my experiences with subway trains.