I have a 12 year old grump who doesn't really like anyone/thing but me. I used to have two, but my other cat sadly died in the summer. They tolerated each other but we're never really friends. The grump also used to have a teritorial problem with a cat that used to look in through the glass by our front door - he would prowl up and down the windows and door and sometimes start a fight with my other cat when he couldn't get to the peeping cat. This all resolved when the peeping cat stopped coming though.
I've been thinking about getting another cat, but don't want to do anything that's going to upset the grump too much. I'm thinking he might see a kitten as less of a threat than a fully grown cat?
Any thoughts? Should I not do it at all?