Don't talk in a mexican accent unless you are from Mexico.
Do not fall asleep while driving. Do not burn people's houses down
Don't eat the natives Don't eat yellow snow.
Don't drink brown water.
As of 2006, ethnic violence between Muslims and Christians in the central towns of Palu and Poso continues to simmer. Tourists are not targeted, but there are very few visitors in the area anyway and the police and military presence is very heavy.
Get out and visit Sulawesi :)