Have you ever "returned" a haircut?

I just got back from my barber of several years and noticed I had received a really sub-par cut. I usually get it really short and for some reason this time it barely looks like I got it cut. I didn't notice this at all in the barber in the far away mirror. He was also rushed as there was like 5 people waiting. Is it ever acceptable to return back for a quick fix? Whats my time schedule? I need guidance from those bold people who have returned their haicut.