Suppose the machine, instead of confirming, merely printed a cryptic message: "Are we having fun yet?"
Suppose the machine then refused to print you a reciept.
Suppose you then called your bank and they said that was just normal bugs in the machine and there was nothing they could do about it, no way to check to see if anything went wrong, and no reason to worry. Suppose they refused to even check up on it.
Suppose that, instead of an ATM machine and cash transfer, we're talking a Presidential Election.
Why do people seem to think that situation is unacceptable up until the last line and fine after that?