Took me 4 hours at my shop in Denver to figure out a customer meant 'Teen Titans' and not 'Titanic'
Guy came in asking for a comic about a sinking ship with a team, and I pulled every Marvel and DC book with water on the cover before he said 'no, the one with the animated show.' Do you just guess when a customer describes a book wrong, or do you make them give you an issue number first?
Four hours of digging through water covers for a guy who couldn't just say "Teen Titans" is wild to me. Sounds like he was the one wasting your time, not the other way around.
My cousin did the same thing with a movie once, made us sit through the whole credits trying to remember who played the dad. Turns out he was thinking of the wrong actor the entire time.