Nothing, because the owner is rejoicing every step of the way.
I'd say employee theft is the only reason a coffee shop would be "no-cash", and fear of robbery in a few places.
You think the owner is taking the cash to the bank?? Unless they are an one-person operation, they likely have an employee do it (among their other duties).
You think the owner is taking the cash to the bank?? Unless they are an one-person operation, they likely have an employee do it (among their other duties).