Dear Vicki, My bunny, Thumper, keeps thumping his back legs whenever the next door neighbour’s cat comes into our garden. Why does he do this? This is what rabbits do when they are alarmed and nervous. In the wild, it is a signal to other rabbits that there is danger nearby. Your rabbit is obviously anxious when your neighbour’s cat comes in to your garden, so it is important that you make sure he has somewhere to hide, so he can feel safe. Try giving him some large tubes and cardboard boxes in his exercise run that he can retreat to. Dear Vicki, One of my two cats died recently; they were brothers and got on really well. My remaining cat, Angus, was really lonely and depressed, so I got a new kitten to keep him company, but they don’t seem to get on at all. How can I get Angus to accept the kitten? Cats are a naturally solitary species and often don’t get on well with other cats they didn’t grow up with. Introducing an unfamiliar cat to a household can be very stressful for both cats. You should keep your kitten in a large indoor cage or play pen for a while, with access to a litter tray, food, water, bed and toys. Feed Angus treats when he is relaxed in the kitten’s presence. Once he is more comfortable around the kitten they can have periods of supervised contact. A pheromone diffuser may also help, however, it is worth remembering that unfortunately some cats may never get along. In this case it may be kinder to find a new loving home for the kitten and let Angus live alone.