Tiger snake.

The last person was an experienced snake handler, and was bitten by his own Tiger snake. People who handle snakes a lot tend to become careless. In fact, many snake bites happen when people handle or try to kill snakes.
The Tiger snake, too, is very dangerous. The snake handler went to hospital, was treated with antivenin, and was fine.
So where does the common sense come into it? Well, in the first two scenarios it was not involved at all!

• Don't touch any snakes in Australia unless you know what you are dealing with and what you are doing.
• Look where you put your feet and your hands. Don't stumble around barefoot in long grass, don't reach into dark corners where a snake might be hiding, or anywhere you can't see.
• It's a good idea to wear solid shoes when bushwalking.
• If you need to walk outside at night use a torch.
• Snakes don't like or seek human company. If given a chance a snake will flee. Just give it a chance to flee.The photo shows me years ago on my very first encounter with an Australian snake. As you can see, I didn't heed my own advice. The snake by the way is a Black-headed Python. On a different occasion I trod on a King Brown , bare foot, in the dark. It didn't bite me, just took off. Now that is very lucky. Don't count on being lucky