My six week old Toulouse goose Pear has gotten quite aggressive with my cats. We have two older cats, a one year-old Main Coone and two six week old kittens. Whenever Pear sees the dogs he runs away or watches them, but if a cat walks into his line of sight he's after them! He pecks and sticks out his neck and bites them and shakes his head it's scary! I don't really know how to get him to stop. I usually tap his chest hard enough to push him backwards when he is doing it or I pin him to the ground. Five minutes later he's at it again!