NeoGAF user Joe Prodigy left his 3DS alone in a spot where his dog, Loki, could get it. So, yeah. Loki ate the 3DS.
If you've ever wondered what it looks like when an animal tries to eat a Nintendo handheld, now you know.
Either that dog is smart, or just tenacious, because he managed to get the SD card out and eat it as well.
UPDATE - Reader Brenden sends in pics of his own 3DS (the blue one, added to the pics below), eaten two days after launch by his little dog Nyx. Who, like Loki, went straight for the 3DS cards. What are they made of, beef jerky?