As I said to Foxy, I have absolutely no issue with it as a kink, but a big issue with the amount that it's just played for laughs or as a throwaway line. "Oh teehee, isn't Tosh clever, of course Jack and Ianto can't keep their private life private from her if she wants to watch" kind of thing.

I don't even know if I'm making sense right now, but that's fairly normal.