My dad keeps buying Furbies on Ebay. We have a handful now, but a few of them don't work, something the sellers never said--they claimed to all work. Our orange one will lock up and get stiff when it leans too far back or too far forward. An auqa/teal one we have (not the blue) was dropped on it's face and the seller never said that, so the head sensor is smashed in and it won't communicate with other Furbies or anything, plus it has a hard time sitting up, so something inside probably broke loose, too. Another one we got, a blue one, has gouges by it's eyes and stained ears, yet the seller sold it as being brand new and flawless.
Really angers me when they break them and try to pass them off as being new or whatever. I ended up getting a black one my dad got and it's perfect. But it seems every other one we get has problems.