You're very welcome, thank you for the reminder! I'd forgotten about that track and now have it in my head again. It took me longer to get the BDSM connotations - and by longer I mean listening to Black Celebration - so I get where you're coming from!
Just wanted to thank you for the comment on Depeche Mode's Master and Servant. I hadn't got past the BDSM meaning in the lyrics, but upon rereading them, I'm baffled that I'd missed the social comment.