Compared to some of the other stuff I've done and had done to me this is pretty safe. At least it's not removing slivers of metal. And I know folks with this and much more extensive body-mods done and they have no problems. It's done in a very specific location I intend to follow the advice of
And the smooth glass might make it easier to move, it also makes
I've lost too many keys, tags and forgotten too many passwords for this to not be useful.