I've read several fics lately where one or other Torchwood team member gets inadvertently turned into something else. Cats are the most common - Ianto, Jack and even Owen have spent time as cats. Either Jack or Ianto (can't remember which now) was a dog for a time, Ianto has been a My Little Pony and a dolphin, while Jack and Rhys were sloths for a bit. Oh, and Owen has been a small snake. Getting transformed seems to be an occupational hazard.