There is something about alpacas that sends Storm and Maia into a total tailspin. They hardly take any notice of sheep or horses or cows (unless they start to run around, in which case they're obviously asking to be herded). These alpacas always come charging over to challenge the dogs to some sort of stand-off across the fence. The dogs run up and down in a mad lather of excitement. I'm still not sure whether they are playing or terrifled!