MECHANICAL ABERRATION
  1. there is a type of aberration source which is simply the amount of charge there is on the case. This might be called mechanical aberration. It does not stern from specific commands but stems from mental inefficiency by reason of cumulative entheta. Entheta by itself can charge up a case to the point where the case will behave in certain definite ways regardless of the command content of the engrams. (SOS, Bk. 2, pp. 102-103)