Okay firstly, I have a 3 year old female who has been desexed. A few days ago I noticed a black cat prowling around in my backyard, AND frontyard. I didnt think much of it though. Yesterday morning I woke up to my cat making a horrible noise, it sound like a loud, long continuous descending "meow" over and over. Of course I was pretty startled so I rushed out of bed to see what was going on. My cat was sitting at the back door, with this black stray cat right on the other side, looking in. It got scared and ran off. Then not long later, it came back, sitting on the back step, right in front of the door. My cat then comes bolting around the corner, and just went HEAD ON straight into the door. The stray got sccared and ran off once again. For the past 48 hours my poor kitty hasn't been the same! What should I do if this stray keeps coming back and distressing my cat?? 