I had been feeding a wild stray cat for many months. Finally, it got so cold this winter I let him in the house. He would pace restlessly in the house, almost constantly wanting out, and the litter box smelled horrible. He would spray as well. He was such a nuisance that I'd give in and let him out. He'd be gone for many hours. I'd worry he might be hit by a car. He was too wild to even pet let alone catch to take to the vet for shots and neutering. I finally set a trap. At first he was too suspicious to use it. I put food at the front of the trap at first, eventually moving it inch by inch until I was able to trap him. Dr. Crago somehow sedated this feral cat, gave him shots, wormed him, and neutered him. He has been a better cat since virtually the day of the neutering. Following the neuter there was no longer the strong, offensive odor in the litter box. He no longer paces restlessly, constantly wanting out. He no longer fights other cats. He had to have a shot of antibiotics due to scars from getting into it with other unneutered cats. Now, when he wants out he "tells" me, he "talks" to me and lets me know. When he does go out he is content to stay close to the house, on my front porch or back patio, and usually will come in when called. I don't have to worry that he is "out there" when I leave the house because he is usually content to come back in after he gets his feel of having some fresh air and sunshine. He is not only letting me pet him, but will tolerate me picking him up briefly and doesn't scratch. He rubs against my feet and legs every day, but isn't too pesky. He doesn't annoy my two spayed females anymore. He used to be restless and intrusive around them. Now he is just one of the gang. It has been some time since the neuter and I don't notice any weight gain. Although calmer, he is not lazy. I am able to enjoy his presence. His wild character is diminished, and his hidden personality is more noticeable. I really believe it was the neuter that made so much difference. Moral of this, if you are considering taking in a stray (may not be safe if you have kids), make your life easier and trap it ASAP. Also be aware that it could have FIV or some other disease in which it will unfortunately have to be put down. I am very appreciative that doctor Crago was willing to treat this cat knowing full well that his behavior was unpredictable and he would need to be handled very skillfully.