Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
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"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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Most of the dust underneath your bed is actually your own dead skin.
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