16 mistakes people make only once in a lifetime12/9/2012
Sometimes you only have to make a mistake once to learn never, ever to do it again. Recently, a driver in Sweden learned this after leaving their car window open as a snowstorm hit. The slideshow above offers a look at some costly blunders people aren't likely to repeat, from forgetting to tighten lug nuts to jumping into a frozen pool.
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What's a classic mistake people make just once?