Turns out, as a friend of mine kindly pointed out, the symbol derivated from a drawing of male genitalia. If he's right, I'm
wearing a figurative dick and balls on my neck.
A quick search pulls up some sites that confirm it, but nothing particularly trustworthy. But I have a suspicion that he's right.. so how am I going to explain this to my grandmother??
It doesn't help that I really like it as long as I don't think about that bit..