I remember travelling around Australia with a group of Canadians (about 15 years ago) and they all had sew on badges on their bags with the Canadian flag to disguish themselves and would get pretty annoyed when people would ask if they were American. It's a shame really because the minority of Americans who do decide to travel are more likely to be the ones who know what is going on in their country and the world yet from my observations they are often treated indifferently by many simply because they are American.