Some rules of dining etiquette are just flat-out wrong (or out-dated), even though they might be pontificated as gospel by the popular press.
For example, you often read that "belching" is accepted social norm in China because it supposedly demonstrates your enjoyment of the meal. Uh, no. Slurping a bowl of noodle soup may be acceptable, even necessary, but belching? That's so, like, pre-Mao.
Are there other myths out there that hungry travelers should be wary of?