bite the hand that feeds one in Russian
bite the hand that feeds one in Russian
куса́ть ру́ку, кото́рая ко́рмит
(idiomatic) To cause harm to a benefactor (especially one that one is dependent on, thus with the idea that this behaviour is self-damaging).
плева́ть в коло́дец
(idiomatic) To cause harm to a benefactor (especially one that one is dependent on, thus with the idea that this behaviour is self-damaging).
руби́ть сук, на кото́ром сиди́шь
(idiomatic) To cause harm to a benefactor (especially one that one is dependent on, thus with the idea that this behaviour is self-damaging).