And as any cat owner will tell you, cats can learn new tricks and complicate matters in unpredictable ways. Notably, 10 days into the experiment, Clover figured out that she could physically overpower the robot's joints by pulling from a particular angle. When the robot tried to take away her favorite orange bird toy before she was ready to relinquish it, Clover pulled on the joint and unlocked it so that the human operator lost control. Clover then took the orange bird toy away from the robot and dragged it away. The string connecting the toy and the stick the robot was holding then got stuck in the water fountain, tipping the fountain over.