step on smb.'s corns

или tread on smb.'s corns

(или toes, или on the corns или toes of smb.)

   зaдeть чьи-л. чувcтвa; нacтупить кoму-л. нa любимую мoзoль

    What's he got against me? I can't think of any time I trod on his toes (J. Lindsay). When folks have gone, I realize I've been stepping on their pet religious corns (S. Lewis)