My pretty kitty Peanuts is about a year and a half old. She started this when she was like half a year old: (but then it went away and then it came back.) you'll be petting her and she'll be all content, then i will see her pupils get huge and her aers go back like half an inch avout half a second before biting me. Its not a hard bite (it doesnt break the skin or anything) but its alarming. She does it once in a while. When she was younger i went on the 'net and found somethinmg that said it was kitten behavoir (like when kittens would get realyl content by their littermated they would playfight with them). But she's not a kitten anymore. We scold her when she does it but it doesnt seem to be getting any better. Any ideas?