Weird behavior after neutering, please help!!!
Last November, a neighbor abandoned their cat. We also noticed a young cat, too big to be a kitten, but not full-grown either) hanging out with the abandoned cat. Since he wouldn't let us near him, and had no interaction skills with humans at all, we figured maybe he was feral. The first cat was very friendly and affectionate (eventually named KitKat) and even though the 2nd cat (Baby Ruth) was not, he wasn't mean or vicious either. So my husband and I decided to foster them and try to find them homes. We got KitKat fixed, but but held off on getting Baby fixed since he wouldn't let us get near him. They would wander during the day but would always come home at night to eat and sleep on our patio. We never did find them homes, so we decided to keep them. We were worried neighbors might call animal control and all the no-kill shelters were full.
Well, as we are moving soon, we figured that they better get used to being indoors permanently because we didn't want them wandering off in our new neighborhood. There is a lot of construction going on and we didn't want them getting hurt. They have now been indoors for about a month, and aside from some inappropriate scratching (we got slipcovers and bought a million sisal scratching posts and mats), they've been good. Baby still moves away when we try to touch him or get too close, but he has gotten so much better. He sleeps and stretches out in front of us and is very relaxed. He doesn't panic when we pass him anymore. Oh, and some nights he meows like crazy! But that's about it.
Anyway, we FINALLY got Baby fixed yesterday and here is the problem: When we brought him home, all groggy, Kit was upset at him. He wouldn't go near him and would hiss and growl in his direction! They have always gotten along so we do not understand this behavior at all! And we noticed that Baby made a noise that sounded like he was passing gas when he first started walking around again. And Kit made that sound about 5 different times when he growled and hissed at Baby. What is that sound? And why is Kit so upset at him? Is this normal behavior???
I'm sorry that this has been so long. I just figured that if I explained the history it might make things easier to understand. We have always been dog people and this is our first experience raising cats so we would appreciate any help! We want to be good cat parents!
PS, Kit tries to go out, but the few times he has slipped out, he doesn't go far. He just lays on the grass but we pick him up and bring him back inside. Is this OK? Does this mean he is unhappy inside? He is fixed and I thought that this would lessen his urge to go outside... ?