Complaints That Made Customer Service Workers Snap

It's as if some people are truly born into this world with no shame. Take the guy who continually pestered the waitress about having an under-poured beer, was proven wrong, and then still had the shameless audacity to demand a refund from there. It takes a certain kind of nasty person to go out of their way to make someone working customer service detest their job more than they already (likely) do.