There are several possibilities. Maybe you were just dreaming or letting some childhood fear get the best of you? Have you tried Googling around for
any similar events?
I was one of those individuals to fully ingest the story that Furby's (when they were first fabricated) were actually Russian and Chinese spy units
disguised as childrens' toys. Of course my nephew had one, and I found it unsettling to find its glazed eyes staring back at me, I could've sworn
that it was speaking too in incoherant Russian.
Similar things happened afterward, like my nephew leaving it on all night, only to hear those scary as hell words that you could picture some
perverted clown saying: "Me love you!!!"