In The Dark
That's one of those clichés that seems pretty self-explanatory. So much so that we've even taken to excluding the second half of the phrase. Many just say, "When in Rome..." and they fully expect everyone to understand. For the most part that works, but it's interesting how many times I've used phrases like that around my younger teenager and her friends and they had no idea what I was talking about. There's another one about a deceased feline and the act of swinging it around that I won't go into detail on, but they were clueless. Very amused, but completely clueless. No life experience with those phrases...at least not yet.