Comments on the article by H. Davis (see record 1975-20006-001) which proposed the concept of "autocontingencies" to describe the unscheduled and unintended relations that exist between important experimental events. The need for the term "autocontingency" is questioned, the Davis proposal that contingencies related to postfood and postshock time are subtle in their effects is challenged, and the alternative possibility that the fixed CS duration means that time since CS onset is a predictor of CS offset is suggested. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1975 American Psychological Association.