Step on someone's toes

Generated image of someone stepping on someones toes
To step on someone's toes means to upset someone by interfering with their work or responsibilities. It usually happens when a person does something that another person feels is their job or area of control.

The phrase comes from dancing or crowded spaces where people can accidentally step on each other's toes. Just like the physical action can hurt or annoy someone, the idiom describes causing irritation by crossing boundaries.

I don't want to step on your toes, but I had a few ideas about how the project could be improved.