Here is a possible solution - an electronic solar powered snake repeller.
http://www.stop-snakes.com/Australia%20Page.htm
I am getting one as I had a brown snake hanging around my obeservatory/weekender and as I stumble around at night sometimes going to and from my observatory it would weigh on my mind at times. Especially
when I found one sliding under the house slab moving across the walkway I traverse several times a night
Greg.