Hi,
I have been giving further consideration to the idea of a rabbit.
My cat is good, spayed and has no vices. She only shows curiosity about the dog next door (I live in an apartment). However, she did fail her multiple cat test, and the reason wasn’t recorded. Sometimes they fail due to being too submissive, and she was not one of the cats in isolation whom I was warned not to let see another cat lest she get angry.
They are overrun with rabbits, but I really like one of them. He is a medium sized 2 year old. He and the giants have been overlooked all summer. There are some others too, but I do not want the potential health problems of dwarves, lops, giants or rexes or the grooming of longhaired ones. I also would like to have a rabbit that is well adjusted, as my experience is with a well trained senior whom I bunnysat. This rabbit really fits the bill – he even comes neutered.
His name is Cincinnati. You may view him here: http://ottawahumane.ca/adoption/petharbor_small.cfm
They said that he is gentle, sits still for grooming and claw clipping, and is medium sized. Then they warned me that things might not work out, because my cat is going on 9 years old (I have had her for two). They said that if it were not for her age, they would endorse this, but since she is older, they advise caution lest she develop bad habits or lose her litter box skills.
What do you think? Has anyone ever successfully introduced a rabbit to a household with an older cat, and not suffered such changes?
Thank you in advance! 
Boing