one person's loss is another person's gain

one person's loss is another person's gain

Something one person loses or discards something, it gives another person the chance to claim it or take advantage of the situation. I heard ADS Advertising lost the FlemCorp account, which means we've got a shot of taking it over for ourselves. One person's loss is another person's gain! I was walking home from my night class when I stumbled across a perfectly good bicycle lying on the street. "One person's loss is another person's gain," I thought to myself, as I picked it up and rode it the rest of the way home.
See also: another, gain, loss, one
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