As I found many questions with what to do with the keys I wanted to share with you what I'm doing with them.
So, to me it's important to always have an emergency key with me, nobody than the person, who does take care of my keys can access. I know, there is potentially the danger that someone could destroy the safe when he/she wants to rape you - but the person first has to know about that, then find it and then be able to break it. So it doesn't seem very realistic this could happen. Of course, if the wearing person gets weak he/she can find a way to break it... but then you would force a person who doesn't actually want this to wear a belt/cadge... it's just intended to prevent you from getting weak.
So, you never know when an emergency or issue is going to happen. So it's always a good idea to have a rescue key, especially if the keyholder lives quite a distance away from your home.
So, I've bought a metal tube and made a hole in the upper part. I bought an infatuation of a curtain pole. The problem with this tube is that you can only fit one key in, but it's exactly thick enough so you can fit the lock. And you anyway don't need more than one key in an emergency situation. (In order to make both fit in I did cut of a slim part of the head of the key)
That's how it's looks when you're done http://prntscr.com/rtnll2
http://prntscr.com/rtnm1k
http://prntscr.com/rtnmfn
So now your dear keyholder can set the code for the lock and lock it. He/she mustn't forget at all what the number was, so maybe note it in a saved document in the phone or engraved in a part that's hanging on a necklace. Maybe on the other key being placed there?
So whenever you have a problem with the cadge/belt/whatever you can call the person and get your number. Maybe video chat so you can show the problem? So if your KH feels you need to be released it can happen immediately.
I have been using the App ChastiKey with a real KH for that till now, does work quite ok, but is pittily easy to trick out. Hope I could inspire some people here. If you have another method that has always worked out fine, or if you think this is bullshit... let us know