I subscribe to the "don't deliberately run over them but don't swerve to miss them" theory.
I'll leave them alone unless they become a threat but that has never happened.
On the subject of Red Bellied Blacks, The Myer store in town used to be a large general store selling everything from clothes to hay & seed. They had a number of Red Bellied Blacks living in the store. They would go up into the rafters during the day and come down at night. The best way of keeping pests under control ever. Snakes can smell mice from a kilometre away and come for a feed, having R/B/B's helps keep the mice down so not so many other snakes are attracted but they also eat the other snakes when they come. So R/B/B's are a good thing to have around. As long as the kids know to behave around them.

