I'm borrowing this camera from a friend of mine, and he told me how to do everything except remove the battery to charge it. It seems like it would be simple enough, but somehow I can't figure it out and brute force seems like a bad idea. Is there some button I'm not seeing? I'm completely unfamiliar with cameras, so assume you're talking to a complete idiot (because you are). I know where the battery is, just not how to take it out correctly.