These are the ones who read, or rather glance through, a news article and immediately believe that our facts are wrong or that we are talking about something else entirely.
They would write irate letters to us, stating that we were wrong about something and that we really should check our sources. Or something along the lines.
Thing is, if they had actually read the "errant" sentence carefully, they would not have needed to write any such irate letter to us.
Instead, we end up having to write calm and polite letters telling them that, actually, as stated in the first paragraph, our stories mean "A-B-C", and not "D-E-F" as they had assumed.
If they had only taken the time to properly read the article before sending us a letter saying we were wrong.
I had a bit of a whinge session with my colleague about this in the morning and the quote he gave me was absolutely priceless -
Conclusion jumping should be an Olympic sport - we might have a chance of a gold!