Red Bellied Black Snake
While it is indeed a venomous snake, it is also a very shy and avoids humans. The chances of getting bitten by one is very remote. (You are more likely to fall off a ladder than be bitten by one).
Our Red Bellied Black Snake website has lots more fascinating information about the Red Belly Black Snake.
Photo by Matt from Melbourne, Australia [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons