step on someone’s toes
US /stɛp ɑn ˈsʌm.wʌnz toʊz/
UK /stɛp ɑn ˈsʌm.wʌnz toʊz/
1.
to offend someone by intruding on their area of responsibility or by doing something without their permission
:
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I don't want to step on anyone's toes, but I think we need to re-evaluate this project.
•
She was careful not to step on her colleague's toes when suggesting new ideas.