Both nailed it right on the head. I can see why you'd be annoyed, hearing it over and over. But what you think is common sense, actually isn't. Of course if they say 4 to glance then a 5 or a 6 will pen. But it's always good for clarity and polite to just, say it. So, to avoid sounding like a broken record. I agree with both of the above and other similar statements.