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 He was a hobbyist, he collected lots of random stuff 
 Weapons-grade uranium! Did he get it from eBay or locally?! 
 Was it auctioned?! 
 I think radioactive materials shouldn’t be sold to ordinary people for any reason. Did it affect his and his neighbors health?! How could this be legal?! Where does your uncle used to live?!  
 Wow, I think you need to calm down. It's just a rock and anyone can pick it up if they know where to look. We did not sell it, the state health department disposed of it. 
 I didn’t say that you sold it, your uncle bought it tho! It looks like a piece of rock, and it’s radioactive! So picking it up is a bad idea. I’m happy it’s “disposed of”, like you said.  
 Anyways, my questions were because of how unbelievable this is and I still believe that radioactive materials must be banned for transportation or sale to ordinary people. Don’t worry, luckily I am always calm.  
 less facehole noises.
more calm. 
 The granite used to build houses and grand building is radioactive.  In fact, you get more radiation from living in a stone house than from the peak leakage from 3 mile island.

Radiation is a "dose makes the poison" thing.  Too much and you get nasty burns and probably cancer.  Too little, and you get cancer.  When the dental industry rolled out CCD cameras for dental X-ray, they required an order of magnitude less x-ray exposure than film.  Shockingly, cancer rates went up with the new equipment.  It turns out that such tiny exposures are worse than the exposures required for film.   Problem easily solved - a little research to find the optimum dose, and cancer rates are down as desired.

A while back there was the BitRot Windows virus which would flip one bit chosen at random on the disk.  Users would not notice anything amiss - enhancing transmission.  After enough bits were flipped, however, their data would be catastrophically ruined.   Modern filesystems like btrfs checksum everything - and catch this kind of thing, but have more overhead.  Similarly, wildlife at Chernobyl is thriving.  They have shifted into high radiation mode, which takes more energy.  But then there are few humans around to bother them.  (There are videos of motorcycle tours of Chernobyl that are fun to watch - they carefully monitor their dose.)

People used to pay to sit in a uranium cave.  A little exposure causes causes some temporary inflammation, which cured certain kinds of disease. 
 Definitely radiations are part of the natural processes of this universe, everything around us, the planet we live on and space. A decaying radioactive uranium is farther emitting more radiations than the uranium found in nature or granite. The same way that getting MRIs can be a factor of higher risk to face cancer than dental X-rays; I’ve had got done both. In a sense our bodies are like the bits on a disk, we malfunction (have serious illness or diseases) depending on the bits that get ruined during our lives). There is one bit that if ruined body and soul are affected negatively, the heart; thank god I got that bit = true. 
 YHBT