If you get your own island you can kill off the animals that can kill you (like deadly spiders and deadly snakes), import animals you like (like horses, cats, and certain breeds of dogs) and then import people you like with "talents" that benefit the community (like someone who can cook, someone who is mechanically inclined, etc). And yah kick the riff raff back out into the open ocean! LOL
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And your point is???? Don't have one? Well then shut up and I'll give you one!