I had a few pieces of uranium I dug out of an abandoned mine in New Mexico. The counts were low enough that they really didn't matter unless you regularly slept with them, or stashed them in your shirt for a few weeks. Lost 'em somewhere in all the moves over the decades.

In a glaring piece of stupidity one of my production managers for the Times Square New Years show bought a geiger counter at one of the electronics/junk shops in lower Manhattan. he brought it into work, where several news networks were interviewing various people, including he and I. When I realized what the little grey box WAS on his desk, I slipped over between takes and dropped it into the waste bin.

And bit his thoughtless head off later.

Ed