Step on sb’s toes

If you step on someone’s toes you say or do something that upsets or annoys them, especially by involving yourself in matters that are their responsibility.

Some Excerpts:

From TV shows, movies and novels

24

William Devane (James Heller) used the phrase “step on sb’s toes” while talking to Kiefer Sutherland (Jack Bauer) in the season 4, episode 1 of the popular TV show “24” as shown below: