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Sliding on wet slick surfaces in the backyard

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The quintessential summer transit method involves laying down a long strip of slick material, covering it in hose water, and throwing yourself at it horizontally. Invented by an upholsterer in 1961, it turns a flat lawn into a high-speed friction nightmare. You either glide gracefully to the end or abruptly stop halfway, effectively transporting nothing but grass stains onto your knees.

Sliding on wet slick surfaces in the backyard
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