Tā zǎojiù tíxǐng guo dàjiā, kě méi rén tīng, zuìhòu háishi chū le huòshì.
He had warned everyone long before, but nobody listened, and in the end disaster struck.
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Somewhat literary, for a misfortune that strikes a person or a family. Everyday words are 灾难 'disaster' and 大祸 'catastrophe'; bringing trouble on yourself is 闯祸.
