a reference to the use of wrongly phrased questions and misinterpreted E-Meterreads to "prove" to an individual that he has been PDHed by the cat (or anyone else). For full data on this see "The Sad Tail of PDH" (June 1961) in the TechnicalBulletins of Dianetics and Scientology.—HSSC Glossary (approved 3-9-90)