Which he swallowed whole.
The poor pooch started spitting up blood, and once at the vet, vomited up bits of the original remote ... but there was still a mass in his stomach visible on an X-ray. It was only then that the Wiimote-swallowing was revealed. Luckily, the dog was able to expel the controller after having his tummy massaged, and he's just fine after an overnight stay at the doctor.
The Wii in question belonged to the family's son, who was punished for leaving the controller out where the dog could get to it ... but who's going to punish everyone else for allowing the dog to chew on electronics in the first place? Sharp plastic bits probably don't digest so well, after all.
On the lighter side, now we all have an excuse to tell jokes about the horrors of dogs chewing on your Wii.