It's a bit unrealistic to think that you're going to get along with everyone you work with, or that everyone will be a star employee. But I don't think it's entirely unreasonable to say you'd at least hope most of them would be tolerable.
Sadly, the world isn't a perfect place, and sometimes we end up working with people who turn out to be our own personal versions of Dwight from The Office. And not in a "he's-so-crazy-it's-actually-entertaining" kind of way, either.