28. The Sentinelese Hate Helicopters
One of the reasons why the natives keep aiming at helicopters with their bows and arrows could be because they appear to be like big huge birds that may attack them first. Plus, the helicopters also make aloud whirring sound that probably appears to be a signal of sorts as far as they are concerned.
The Indian Coast Guard helicopters were attacked when they went to check on the Sentinelese after the devastating tsunami of 2004because the natives were simply not happy to see them at all, much less the loud helicopters.