It's a fair question. See, everything comes with two sides. Take oxytocin. It makes you more loved up. With people you're already inclined to like. However, with people you're already inclined to dislike, it has the exact opposite effect, it makes you dislike them more. It's actually very common that people who are very generous in big matters are also very stingy in small things. It's very strange. But that's the way it is. Of course Thais can be friendly, prone to Buddhist morality, kind, well educated, sweet, but also prone to bouts of violence. The Indonesians are the same. All smiles, until they have had enough and run Amok.