Why Copy Editors Drink

I've been busy preparing a presentation for the Indiana RWA Retreat this month, trying to sort out what I want to tell the participants about being a copy editor. My theme is "Why Copy Editors Drink," and my struggle is figuring what the most important information is to impart in my brief time. Here's the thing, a lot of what I do is cleaning up simple errors--stuff that, if writers knew not to do them, my job would be so much less time-intensive and I could focus on the meat of their stories...