Hello. I have Rufus, who is 5 years old and 3/4 working 1/4 show and black (registered black and white). As Hurtwood said, some workers have a very strong hunt instinct and I have one of them. My children are grown up, and we had the guineas and bunnies some years ago before we got Rufus. I would urge you to be very careful, as my cocker is very fast when hunting and rabbits are very fragile in the neck and back. I am sure you will not have an incident, but I know I would not be able to keep a rabbit in the house with my cocker. Others will have done so successfully, so I am sure it is possible and they will have advice for you. Good luck and hope all is well over Christmas. We picked Rufus up after Christmas and New Year so the tree and decorations were down, so I wouldn't know what you face.