Lese Majeste Laws in Thailand
Another divergence from some but by no means all constitutional monarchies is that any criticism of the Thai King is absolutely forbidden and can attract harsh penalties through the prohibition against lèse majesté. The king himself is unable to defend himself, and there are no laws which provide him an opportunity to contradict any defamatory statements.
Foreigners in particular should avoid any criticism of the throne. For those foreigners who are in the habit of loudly criticizing their own monarchs, this will not go over well in Thailand. Thailand has a more respectful and face-based culture and direct criticism and negativity is seen as poor manners or worse.