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Source: [url=https://www.fark.com/comments/10981131?utm_source=feed&utm_medium=comments&utm_campaign=fark]Good: You go backpacking in the Grand Canyon. Bad: You get bit by a rattlesnake. Good: You get airlifted to safety and get a shot of antivenom. Bad: The antivenom is created from a horse and you're allergic to horses [Scary][/url]