Prikry type forcings and the Bukovský-Dehornoy phenomena

This paper is meant to present in a coherent way several instances of quite common phenomena that was first identified (independently) by Bukovský and Dehornoy. We present the basic result for Prikry type forcing and show how to extend it to the Gitik-Shraon forcing, the Extender Based Prikry forcing, Prikry forcings with interleaved collapses and Radin forcing for $o(\kappa )<{\kappa }^{+}$.