I'm currently taking care of my aunt's dog while she and her family are overseas. The other morning, the dog's going crazy and barking at something in the bushes, so I figured it was the blue-tongue lizard. Sure enough I found it dining on snails and took a picture of it.
It's about the size of my forearm, and I think there's another one wandering around. I hope the dog doesn't scare them away because they eat the bugs in the garden. They're actually really shy and pretty harmless.