Before Scientology, I was a compulsive talker. This does not mean simply that I talked too much - I was actually unable to be in the same space with people and not talk. When I was around people I talked nonstop. Then I did a course in communication at my local Church of Scientology, a course which consisted of a sequence of training drills. The result was nothing short of a miracle. After a few hours I had control, the compulsiveness was gone and I could talk or not talk around people.