My neighbor is looking after two cats in her flat, she didn't separate them for the first few days. One is very agressive to the other. Lord Nelson, 6 months old is relaxed and just wants to play, but Pixel, one year old hisses and wants to kill him, she says.

I have agreed to take Lord Nelson to my flat tomorrow, hoping Missy, who I look after, will tolerate him and hopefully play with him. My neighbor is really stressed out about this. I told her that Fister's vet once sprayed something into his box to calm him when he went back home, that helped a lot, but I can't remember the name of it. Can any of you remember what it is?

I think the vet is open tomorrow and since New Years Eve is coming up, it probably would be a good idea to get some of that stuff, although I think it's expensive.

My plan is to keep Lord Nelson separated, but let them smell each other and then later see how it goes.

Any advice will be appreciated. Thanks!