Stickman discusses conflict in his column this week. Some insights that from my experience are right on.

Criticism from farangs seems to be typically be seen as not just unwanted, but unwarranted.
IтАЩm not going to say it is easy, and IтАЩm not going to say that it is right, but if you want to have a relatively stress free life in Thailand, getting along with people, even if you disagree with what they are doing, is oh so important. At the end of the day, kicking up any sort of fuss only damages the relationship. It's defeatist, but it is about the only policy that seems to work a lot of the time. The importance of harmony in Thai society cannot be underestimated. It is huge.
On my last trip, BF was cheated by a local merchant, my attempt to make it right caused BF to be more upset with me. By my standards this was crazy, but then, this was Thailand. Stickman is right, harmony is huge.

www.stickmanbangkok.com/Weekly2006/weekly272.htm