Maybe a dumb question. But something is making my cats disappear. We have five fenced acres, with five dogs. No immediate neighbors. My chickies are predator proofed, but I've lost five adult cats over the last four years. We do have coyotes, but my dogs keep them away. So what is taking my cats? They all disappear overnight. The last one to disappear was such a scaredy cat, she hardly left the house. Last night, my boy cat, Burt, came barrelling into the house, via the cat door, just scared to death, like he was being chased. Then the dogs went crazy barking. When I got the flashlight and went out to see, nothing,...but barking dogs. Any ideas?