Oh that doesn't mean nothing will try to kill you. The redcaps are just the tip of the iceberg, really! But at least you don't need to worry about your usual nightterrors! Ha ha ha!

Be wary of the dark places. Just as there's dream energy about, there's also nightmare energy that can take the form of creatures known as noctaere. Far more powerful than the usual creatures that might think to try and eat you for supper. It's possible to even become one with enough negative emotion though positive emotion can return you to normal.

As far as other unwritten rules, the overarching one is generally "don't start none and there won't be none".