Hi Jamie, yes they are cheeky on the islands!We had to lock up our lunches when collecting Tiger Snakes on Carnac Island (for a research project at RPH) because the buggers would raid our backpacks! They are beautiful lizards, which as Oshkii says, have quite variable temperaments. Similarly as mentioned, like many large skink species, they often live in fairly isolated family groups, so breeding between related individuals is probably fairly normal. Breeding between siblings would be quite OK for at least a couple of generations, and if you want to add different blood after a while, you'll need to be very careful about how you do the introductions because they have a very strong hierarchy structure in their colonies.
Jamie
One of the funniest things I saw was a family of tourists (Indian?), set up a lovely picnic on a blanket, on lawn under the trees at Penguin Island, south of Perth. Once it warmed up, the food came out then the people went away for a play. Then lot's of kings skinks came out for a picnic.. Then the people came back, they were truly terrified and were screaming and running around waving their towels. They packed up their blanket and things and fled down the board walk towards the ferry and that was the last we saw of them, lol.
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