Ive never paid for anything in Australia in cash with any other currency except AUD, and i highly doubt any store would legally accept anything else other than AUD (unless a mum and dad store and they are cool with it, but even then probs unlikely)
Depends what the charge was and what business i was running. Id want to hear their story and see their track record after prison. I believe in giving them a second chance but id be watching them until i trust them
You just employed a neurodivergent worker. Checkmate.