Another time i just had it sitting on the seat, we were near a river which was known for crocs but was generally safe, a few days before we got there a croc had came up like 500m out of the river and took someones dog. So i was prepared that night too, but thankfully didnt need it.
The rules are different for each state, But i kept it locked away under our seat and didnt mention it.
The only time i got it out was one night in remote QLD at like 3 in the morning we woke up to loads of howls really close, we could hear the dingos trotting around us in the dark. We had dogs, so i was worried about them.
I got the gun out quickly and let a shot off and they all cleared out.
Generally what most people do is go to a spot, work there for 1-xxx weeks and then head off again.
We met an artist who was travelling around doing commissions at private caravan parks/station stays. They were painting their Toilets to look like a barn!