Furbys are designed to become evil
--there are guides to fixing
their behavior. Gizmodo reviewed one
The Furby's erratic mania culminates in its schizophrenic personality changes. It shouts, "I'M CHANGING," squeezes its eyes shut, and then reopens them. Now it's changed. During our testing, it remained in some sort of demonic phase, with slit eyes, a raspy voice, and lots of cackles. ...By the end of the testing, Furby seemed permanently deranged. No amount of cuddling, petting, feeding, or murmuring of "I love you, Furby," made any changes. Its eyes were vacant, even for LEDs—a great vacuum in the hole where its soul should have been.