What is it about a vacation state of mind that leads some travelers to grossly misbehave while on foreign soil? Judging by these tourism-linked incidents — the most recent involving a tumble into a volcano — it’s clear that some people might be better off without a passport. But that's just the tip of the, err, volcano. We're anxiously awaiting the next tourist-related debacle, especially as California's Redwood National Park released a statement warning people from visiting Hyperion, the world's tallest living tree — being caught near the coast redwood could land you six months in jail and a $5,000 fine. We can practically hear the bullheaded thrill-seekers planning their "we can totally get away with it" crusade. In case you need a refresher on how to behave abroad and stateside too, these outrageous and overly entitled behaviors are the perfect guide of what not to do.