Is it common enough for people to understand the meaning behind the key?

Alright, here’s the quick backstory. We began our chastity journey about six months back on an honor system basis. Things have been going smoothly for us so far. The reason we went with the honor system is that I initially thought J wearing a device down there looked ridiculous and kind of turned me off. About a month ago, he suggested I rethink my stance. After mulling it over for a day or two, I realized I actually don’t mind chastity cages at all. So we’ve started locking him up on a regular basis.

He got me a lovely silver chain, and I keep the key around my neck. It rests near my cleavage, which means that most of the time (for instance, while I’m working), the key itself is concealed within my scrubs or other clothing. However, since it’s summer, when I’m out and about rather than at work, the key just dangles there for everyone to see.

I don’t really mind if people notice, but J worries that folks will spot it and figure out what it’s for. People do ask me about it occasionally. My go-to answer is that it holds something important to me. But honestly, is this kink well-known enough that others would actually guess the purpose of a key I wear? I believe not, though J thinks otherwise.

To be clear, let J think what he wants; so far, I haven’t felt compelled to hide it. That said, I’m also not actively trying to expose him either.