Ask How do you handle a client who constantly compares your work to things you did not agree to match?

[Edward22]

I have noticed some clients like to bring examples that were never part of the original agreement and expect the same result without extra cost. This can make things confusing and stressful during a project. It also makes it hard to stay focused on what was agreed at the start. I feel like clear boundaries matter here. How do you respond when a client keeps comparing your work to something outside the project scope?