Yep. We were bequeathed a black cat when my brother moved out (lazy bum) and I'll just say that we will make sure that we check every door so the slippery bugger can't get out. To your last sentence, that stuff is real. When I was in college, we were looking for trouble and went out to this place called Coronado Heights in central Kansas where we heard that some neo-pagan or wiccan folks used to go to celebrate Samhain. Central Kansas is completely flat outside of this one particular area that had somewhat of a mesa that was higher than everywhere else in the area - so back in the day they built a fort on it. Either way, we snuck up on some folks and saw some weird stuff.