My mother used to own a Siamese cat... she was the nastiest animal I ever met (the cat, that is). Try to pet her, and she'd bite or claw you if she was in a bad mood (which was most of the time, just like her owner). They're very pretty to look at, though.
Which reminds me of certain female homo sapiens, but I'm not going there— I might get my "fan club" mad at me!
Topic drift... but I'm working on my 10 posts.
It just depends on how you treat them. The last Siamese, "Puppy", I had as a foster was nasty the first week I had him. (3 year old male). Claws and everything. I gave him a couple smacks and left him alone while I tended to my bleeding. Eventually he learned he wasn't "top-cat", and who filled the water and food bowls.
"Puppy" was adopted last week, about 6 weeks after I got him. Leave the cat alone, and it will eventually cozy up to you. "Dog people" try to roughhouse with cats in the same way as dogs, and usually that creates mean cats.
I haven't tried it, but I have always have wondered if it's true. If you cut the cat's whiskers off on one side of its face, would it wander around in a circle in the dark?
James