"Also, you should never, ever, no matter what, butt in front of people waiting in line without asking their permission..."
Someone should show this to the proponents of giving amnesty to the illegals. It's a very basic concept.
What the hell does that have to do with this article?
Actually, it's a basic concept only in Anglo-Saxon countries. In France and Spain, for example, there is no line for, say, a bus -- everyone piles up to the door and pushes their way in.