[nekoashide]

Bluetooth controlled? The device sure, for all we know it's just kicking over the dispenser. The clerk isn't looking but I'm sure if they look at the pump on the register it's counting.

It's still all serial based comms, but unless the attendant is trained or aware they might just think someone is pumping. It will show up on the daily report when the dispenser report doesn't match the sales report.