Goanna in our Greenhouse

We often have Goannas wandering past the Retreat and this one decided to check out the Greenhouse recently. It has happened before, as on a hot day we leave one of the sliding doors open to promote air flow. Especially, too if we have had a BBQ the day before, which is in the Greenhouse. A Goanna often takes shelter in a gap under our bedroom doorstep. One morning a Goanna was spotted walking past the Retreat and I went to see where it had got to. As I opened our bedroom door and stepped out, the surprised Goanna shot straight towards me and rushed into the gap a metre away under my feet !