Growing up in the states during the late '70's early '80's it was definitely a bad thing to have Smurf toys. I heard a lot of 'demonic' possessions of these stuffed blue toys wearing white hats (or red). Shit like a little girl went to sleep with her smurf doll and woke up in the middle of the night screaming bloody murder. When the parents got to her she had scratches down the side of her cheek and blood on the smurf dolls hand.
Of course, no one brought out the fact that the family had a cat and it hated to be closed up in the room with the daughter... and the smurf gets the bad rap.
Come to think of it, what is it with JWs and DEMONS period? Speaking to my mom the last week or so, she had said 'demonic', 'demon possessed' and 'controlled by demons' a few times. Makes me wonder if she's hiding something, I don't know what, maybe she's into witchcraft....