ГЛУХОМУ ПОП ПО ДВЕ ОБЕДНИ НЕ СЛУЖИТ

You had to listen, I will not say it again. See Слушай ухом, а не брюхом (C)

Cf:Не who has ears let him hear (Am.). Must I tell you a tale and find your ears too ? (Br.). Wake up and smell the coffee (Am.)