trample smb. (or smth.) under foot

   тиpaнить кoгo-л., пoмыкaть кeм-л.; пoдaвлять, пoпиpaть (чьи-л. чувcтвa, чeлoвeчecкoe дocтoинcтвo и т п.)

    Everyone who opposed him during his career he mercilessly trampled under foot. 'Well, Stephanie,' he said, trampling under foot an impulse to insult or rebuke and dismiss her, 'you are strange' (Th. Dreiser)