Why is it called a restroom? You don't go in there to hang out and relax, as far as I can tell. It doesn't really make sense to call it a bathroom, either, unless it's at someone's house and there's a bathing apparatus in there. But if you're out at dinner and you excuse yourself to use the restroom or the bathroom, I think that's kind of inaccurate. Unless you're going to lie down in the toilet for a while, just thinking about your life.