My little Bombay cat rules my husband and I with an iron paw. Well, she dominates me and constantly tries to muscle in on my husband's alpha--pack-leaderness. The showing their bums thing is "Smell me! Smell me! Acknowledge me!" thing, and she's constantly reminding DH who she is, constantly rubbing her scent everywhere, constantly jostling for position.
With me, she attacks me like a crazed Koala bear, takes special umbrage with my feet, and she constantly needs to dominate me. But I am also cuddle giver, she runs behind my legs when she is scared, and gets especially excited when I get up in the night for the loo.
She loves us, in her own catty little way. She hasn't fit into our lives, and she's not there to provide entertainment. She made a cat shape in our lives, and I'd love a dog to to the same! One day, I'll persuade DH to buy a zoo with me, and we'll have domesticated animals and wild animals alike - non providing entertainment but all just being what they are - wonderful creatures with personalities and quirks and odd little ways.