Going to a restaurant is supposed to be a relaxing experience. But for Katherine Dillinger, there was one thing that was guaranteed to stress her out: Seeing “Caesar salad” misspelled on the menu.

“It would just drive me ballistic,” Dillinger said.

After years of practice, she’s learning to relax. “Now, I just shrug it off. I still notice it, but it doesn’t drive me crazy like it used to.”

Many of us have a tendency to notice bad grammar and misspellings, as evidenced in the gallery above. But for copy editors, the people who read and edit stories for grammar, style and substance, fixing errors is their job.