Maybe the form of my validations module is deficient…
<references to various instance methods of parent, e.g., ref_1 &
…because when I include this module in a parent class and then in
that parent delegate to the methods of an associated AR class…
delegate :ref_1, :ref_2, :prefix=>false, :to=>:associated_ar
…when the validations execute in the parent, they do not find the
delegated instance methods.