No issue pulling out, but what device keeps you from re-entering?

I’m seeking a firsthand report on devices or modified versions that prevent re-entry. It’s obvious that ball-trap models can always be pulled out, which works for me since I don’t want a piercing. What I need is an approach where either I simply cannot get back in, or if I do manage it, my KH notices. Essentially, I want to wear a belt system such that pulling out leaves me unable to re-enter, or at least signals the issue to my kh. Currently, I have the CB6000.

Got any ideas?

If fitted properly, mature metal devices make getting back in really tough. I can get mine off, but once it's out, putting it back on is a struggle ...