My friend took two very skittish cats from me when I moved, and it has been weeks, and they are still not adjusted enough. She wants to pet them, and they are continuing to hide. Does anyone have any suggestions? She is singing to them, trying to engage them in play, etc, and nothing seems to be working. They were skittish before but seem even more so now. She bought cat beds that have catnip in them, and I gave her some catnip mice which they loved playing with at my house.