See, I have a habit of removing a CD and popping it back in the first available empty case. I don't mean to; usually my mind is elsewhere and I'm just not paying attention. My non-detail-oriented self doesn't really see this as a big deal, but for my order-loving husband it's a travesty of the highest order.
On the other hand, I detest my husband's obsessive toe-cracking, something he can't understand.
Ah, pet peeves!
Everyone has something that irks them in real life, and I think the same can be said for writing. For example, I hate when writers kill off main characters with little or no warning, or when loose ends are tied up all neatly and conveniently by something that came about by luck. I also hate when there are just too many twists and turns (as in the movie 2012) -- I just lose interest!
What are your writing pet peeves?