Bali has such a relaxed atmosphere, and the people are so friendly, that you may not be on the lookout for scams. It?s hard to say when an ?accepted? practice such as over-charging becomes an unacceptable rip-off, but be warned that there are some people in Bali (not always Balinese) who will engage in a practised deceit to rip you off. Most Balinese would never perpetrate a scam, but it seems that very few would warn a foreigner when one is happening. Be suspicious if you notice that bystanders are uncommunicative and perhaps uneasy, and one guy is doing all the talking.