[tmeasday]

Yeah, I've been told it falls under the standard AppleCare warranty if this happens to anyone. (Likewise with fraying of charger cords).

Personally, I don't see why it's "your fault". I've seen it happen many times, all you need to do is let your computer drain completely and leave it for a few days (not months as some people have stated in this post). Although I'm sure it says something about it in the manual somewhere, it's hardly common knowledge that this is something you need to be careful of.