The fast-rise of two bitcoin bankers who installed the world’s first bitcoin ATM in Canada has been slowed a little bit by an entrepreneur who figured out a way to undercut the high-tech business.

Bankers Mitchell Demeter and Jackson Warren noticed a bunch of canceled transactions at their ATM in a Vancouver coffee shop and visited the machine to investigate. They found a man camped out next to the ATM offering to exchange Canadian dollars for bitcoins at a better rate than the ATM, which took a 7 percent cut, Wired magazine reports.

Before the enterprising guy set up shop next to the ATM it had done about $1 million in transactions in a month.

Demeter and Warren gave the money changer the boot and hired a musician to sit next to the ATM, at about $11 an hour, and discourage human competitors.