I adopted a kitten I've rescued from work. One of my neutered male cats, Dusty, was his surrogate mom until he was weaned. My other neutered male, Dave, was his guardian and playmate. My female, Sammy, just taught him some manners by a few select bites on the ears or a paw smack on the head. Now the rescued kitten, Teddy, outweighs the original three cats. I waited a bit to get him neutered because of finances. Right about the time I took him in for neutering, Dave started to act strange. At first, I thought it was due to the severe thunderstorms we'd just started to get, but it happened storm or clear skies. Dave acts like he doesn't recognize any normal scents. He gets real tense, stretches his neck out to sniff from a distance, stalks, and scares easy. He won't walk on the concrete floor of the screened in carport, but climbs over the tables, shelves, etc. I was scared the first time I saw it, so I kept him in the bedroom with me overnight. He curled up with me just like normal. The next morning, after I let him out of the room, he went to the living room and started yowling and passed feces on the rug. I carried him out to the carport and the litter boxes and he immediately passed urine like normal. He couldn't make himself walk through the kitty door to the carport and litter boxes. I increased the number of litter boxes (added one to the inside) and that problem hasn't happened since. He can walk through the kitty door to the carport without hesitation now. I 've watched Dave since Teddy's operation, and things are getting back to normal, so could this have just been due to Teddy's hormone changes?