I walked into the kitchen and she was lying spread out on the kitchen table... Naturally, I shooed h…

I walked into the kitchen and she was lying spread out on the kitchen table... Naturally, I shooed her away and scolded her. This woman doesn't stop, she runs to the stairs and starts biting the wallpaper with her teeth, running around like crazy. I chased her away with a towel, but she took it all as a game. She runs around and bites my legs. What's wrong with her? She's 8 months old...