Unfortunately, we never did solve the problem. Simon turned out to be a girl (and renamed Marcy) so possibly that contributes to the issue (4 females in one house). We never found her another home: we fell in love and my dog died 6 weeks after I started this thread, so we were in no shape to...
Yep, that's Stella the Guinea Pig (her sister is Sasha). They don't play together, but Marcy has always been fascinated by them, and since she was a kitten when we got her, the pigs weren't as spooked by her and by the time she grew up, they were content to let her sit in their cage. Marcy...
Some new pictures of Marcy. Not really "Bad Cat" but, well, she's just not quite normal.
Buffy and Marcy fighting. Buffy's the elder, the alpha (10 years old) and Marcy's the little fart who won't give in and take no for an answer. It's been a battle of wills with her for the last year.
Marcy has sort of hazel-golden eyes
Willow's eyes are my favorite: they're green when she's happy and content, but a fiery yellow-orange when she's mad/upset
Molly also has green eyes, which look really pretty with her pink nose