Let me put it this way. I was an early adopter of a simple sort of body modification - I had a small neodymium disc magnet sheathed in some inert material impl

Let me put it this way. I was an early adopter of a simple sort of body modification - I had a small neodymium disc magnet sheathed in some inert material implanted in a finger. It was cool and all, but I eventually got it removed because it was sensitive and if the inert sheath ever broke, it'd be bad news. Bodies don't like rare earth metals. When I got it removed, the person who did it turned out to know the one who put it in (small world), and they told me that the new ones were tiny slivers which were almost impossible to feel, much less remove. And that wasn't exactly comforting. Mine practically popped out, but a tiny sliver? Nowadays, I think two or three times about those sorts of 'life hacks'.