This cat-proof system sits on top of the fence and when a cat grabs on, it will spin, forcing them to jump back down to the ... they could reach over it and grab onto the steady fence post.

Three-year-old Loki jumped up a 6ft-high (183cm) fence with the trap on his leg to get home to his family A cat owner said it ... Loki managed to jump a 6ft-high (183cm) fence at the back of ...