Is it u means bite the paper box? At moment I am not found she have this habit .
But she love to playing & run around, active gal. Love to use her head to touching your hand want you petting her.
And she is smart. When you sleep, she not disturb you, but when you awake, she come to your side. Lovely gal.

Is it she make you feel her a bit same as the cat of - 魔女の宅急便. ?