Apparently, roll searching has become popular in Australia, and banks don’t like it. Oz-speak for roll searching is coin noodling. See the link. Cal https://www.dailymail.co.uk/femail/...n-noodling-ATM-trend-young-Aussies-using.html
Just wait until their coin machines start charging them 10% handling fees. Suddenly it won't be so risk free.
I did roll searching at a local credit union and they stopped giving me boxes. They didn't like the roll searching.