I brought Decker home from the vet yesterday after staying overnight to collect his urine due to a severe infection. He was very stressed out and ran crying (more like yowling) under the bed as soon as we got home. Since then Rumor has been hissing and growling at him just like she's never seen him before. Last night when feeding them Rumor started hissing and something like a fight must have broke out and Moxie took off hiding and wouldn't come to eat - this never happens. Now this morning it is still going on but worse. Rumor is hissing at Decker and now Moxie and sometimes even the other cats. Moxie is terrified acting, growling at Decker and hiding under furniture and Decker is just plain scared and confused. It's like I just threw a bunch of total stranger cats together.

I'm already having behavior and peeing issues so I'm afraid this will make things worse. Please, any suggestion?

Feliway isn't an option because two weeks ago Rumor peed right in front of the plug-in and that started a behavior problem with her. I don't know what to do and I'm suppose to be keeping Decker calm as well as Scout - due to kidney and bladder stones, and Ripley - due to kidney failure. Calm is the last happening here. On top of that I have company coming in on Monday for the whole week. More stress.

Does anybody want Rumor? I've had enough of her right now.