which foot the shoe is on

Phrase

 * 1)  Which point of view is considered or whose interests are used as a basis.
 * 2) * 1915, Hannah Kent Schoff, The Wayward Child: A Study of the Causes of Crime, Bobbs-Merrill Co., p. 22 (at archive.org):
 * "A whole lot depends on whose foot the shoe is on. I have noticed some of these fellows who speak about sentiment do not object so much to it when it works their way."

Usage notes

 * Often preceded by a form of the verb.