My aunts cat bites everyone that tries to touch her and has since she was tiny. She used to run down the hall after my grandma, jump on her leg, attatch herself, and bite repeatedly. Grandma shook her leg in vain...the cat clung. Now she's fat and alot older and doesnt do that anymore...as funny as it was to me and the cat(as much as grandma hated it), did she quit because she is old? Fat? Insane? Are all siamese cats like her? why does she bite, hiss, and scratch anyone that tries to touch her, yet want in your lap alot....Anyone think she's insane? Or is this behavior normal in siamese??