In the 1950s during an expidition in The Congo, a photographer from National Geographic had had a big glop of bird poop drop on his shoulder. When he went to wipe it off, his guides stopped him. They told him it was a from a foo bird, and it was very bad luck to wipe it off. By the middle of the afternoon, in the sweltering humid jungle heat, it had gone completely rancid and he was gagging from the smell, so when they had stopped and he was cleaning his cameras, he also cleaned off his vest. When he slung his backpack back up on his shoulders he hadn't noticed the black mamba snake that had coiled up in one of it's top pockets. It was disturbed by the pack being heaved up and it came out and bit him in the neck. He fell down dead before he could take two steps.
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