For something close to home look here: https://www.orau.org/health-physics-museum/collection/health... - radioactive gold jewellery because someone somewhere in upstate New York State got their hands on some radon seeds and mixed those in with the rest of the scrap gold.

There's documented incidents of radiation burns (https://jamanetwork.com/journals/jama/article-abstract/33268...) and cancer (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1451360/).