"A bud, puts water in the case, and uses a wooden dowel..."
Goodness, what a mess for doing a simple task.
I've been pushing out live primers normally and safely since '65. It never occured to me there might be a danger in a solid steel die that's closed at the top with a steel decap rod; and it still doesn't occur to me. Even if one did go off, it's just a tiny pellet of compound, not a stick of dynamite; if I was that nervous about reloading I wouldn't do it!