I think this is the juncture in this conversation where someone mentions munches and tells the OP to consider looking in their local area for munches where they can meet definitely kinky people in a safe, vanilla environment.

Being the kind, considerate submissive that I am I have, of course, just done this in order to save any of the Dominants the trouble of doing so

Maybe we need a secret handshake, like the Masons? So we can tell who we all are without resorting to potential 'accidental outings' In the old days we had the scarf code but a) no one seems to use that any more b) no one seems to be able to agree the exact meaning of many of the scarf arrangements (it seems to vary from location to location from my reading) and c) no one wears scarves any more to go clubbing so anyone wearing scarves of any colour would stand out...

There is also the Triskelli symbol which some have adopted for use to represent the lifestyle but I don't think this is universal and some people wear jewellry with that on it because they like celtic looking jewellry rather than because they are kinky...

So, any more potential universal signs of being kinky that are out there?