Anyone who stands in the way of a thetan’s spiritual progress is a Suppressive Person (SP). This is a key concept in Scientology. Hubbard uses the term to describe a sociopath. The Suppressive instinctively fights against constructive forces and is driven berserk by those who try to help others. Hubbard estimates that Suppressives constitute about 20 percent of the population, but only about 2.5 percent are truly dangerous.

