At-home teeth filing
You can sever the inferior alveolar nerve, causing permanent lip and chin numbness requiring $4,000+ microsurgery.
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Example risk cards
You can sever the inferior alveolar nerve, causing permanent lip and chin numbness requiring $4,000+ microsurgery.
You can miswire the breaker, creating an arc fault that ignites the panel and causes a house fire.
You can puncture the pipe wall with the snake, causing a sewage leak that contaminates the surrounding soil and basement.
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Every risk level and consequence is drawn from published safety literature: CPSC (Consumer Product Safety Commission), FDA, ADA, and NEC (National Electrical Code). Each project card cites its specific sources with year.
No. We cover ~80 common DIY projects across 6 categories where people most often skip professional help. If your project isn't listed, that's a signal to consult a pro.
Generic warnings don't change behavior. Knowing you could sever a nerve costing $4,000 in surgery changes behavior. Specificity is the entire point.
This reference does not replace professional advice — it helps you decide when you need it.