step on (someone's) toes(redirected from stepping on toes)
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step on (someone's) toes
To insult, offend, or upset someone, especially by getting involved in something that is their responsibility. I want to help John out on his project, but I know it's his baby, so I don't want to step on his toes in any way. Look, you're going to have to step on a few peoples' toes if you want to get ahead in this business.