1. They are mudhas

    If you say that “You are mudhas,” he becomes angry. Upadeso hi murkhanam prakopaya na santaye: “If a mudha is advised nice instruction, he becomes angry.” He does not take it. Payah-panam bhujanganam kevalam visa-vardhanam: “If you give milk and banana to a snake, you simply increase his poison.” One day he will come-(growls). You see? “I have given you milk and you…” “Yes, that is my nature. Yes. You give me milk, and I am prepared to kill you.” This is mudha.

    Srila Prabhupada, Morning Walk, January 21, 1976, Mayapur