What are some of the unethical hacks to help live in Melbourne

Idea taken from another sub - What are some of the unethical hacks you know of or have used to help live in Melbourne?

I'd start with one I know - For those with android, they can delete their Myki cards when their balance is in the negative. They can purchase another card with no card costs (as opposed to 6$ for a physical Myki). This can help save transport costs.