From Longman Dictionary of Contemporary Englishstep on somebody’s toesstep on somebody’s toesto offend or upset someone, especially by trying to do their work I’m not worried about stepping on anybody’s toes. → step
Examples from the Corpus
step on somebody’s toes• I'm new here, so I don't want to step on anyone's toes.• I told Tony I didn't want to step on his toes.• I had stepped on his toes.• It is said the reason why Taurus ran into trouble was a reluctance to step on anyone's toes.• But that will make AT&T's service and equipment-manufacturing businesses step on each other's toes again.• This will involve stepping on the toes of the takeaway market. 