DISCUSSION: Dr. Martin Davis gave further instances of the occurrence in everyday life of the 'once doesn't count' phenomenon, including the light punishment given to first offenders, broken New Year's resolutions, reducing diets, and struggles to give up addictive practices. He suggested that each time patients yield to the compulsion to repeat, they do so as if it had never happened before and they were attempting to solve problems for the first time, so that 'once doesn't count' becomes a denial that the trauma had actually occurred. Dr. Renato Almansi commented on two cases that demonstrated the 'once doesn't count' phenomenon. Both acted out perverse fantasies on one occasion and took the attitude that since it had happened only once, the experience was of no significance. Dr. C. Philip Wilson spoke of the alcoholic patient who uses the 'one last time' vow as a method of dealing with a strict superego. Dr. Max Schur felt that 'once doesn't count' was not only a denial but was also an attempt at undoing; he commented that 'it happened only once' may be a screen memory for other memories.