Dog in a Manger

• The Dog in a Manger is an expression that refers to those who not only do not use something for themselves, but deny it also to others.

Origin

• It is a Fable from Ancient Greece, but does not form part of Aesop's Fables.
• Diogenianus (1st century CE) refers in his Lexicon to the dog in the manger which does not eat the barleycorns itself, but neither lets the horse eat them either.