Depending on what they are and where they are, depends on what happens to them (hypothetically as they are protected
). If it is poisoness and near the house = GONE (bang bang), if it is harmless, then it stays. Down the paddock or in the orchard, then blacks, black face whips, etc can stay, but taipans, browns, adders and roughs are dispatched. We have several large (3-4.5m) carpets living in the sheds and they have been there for years keeping the mice population in check. The 4.5m one has a habit of cruising through the packing shed during harvest season. She can certainly empty a shed full of backpackers quickly. Damm funny as she just slithers on through and out the back door without a care in the world.
We are trialling solar powered snake repellants around the house this year. So far so good as there has been a few active elsewhere but I have yet to see one near the home. If they work well, I might take one or two away with the camper.