I have a new reason to shake my fist at Apple: their credit card (the physical card) breaks the card reader 100% of the time, causing a 10 minute delay to reset and reconnect everything. Except for the time when it never came back at all and had to be replaced.
We've taken to turning the reader backwards so that customers can't insert chip cards without assistance, for the *sole* reason of preventing people from inserting the Apple card. It is only the Apple card.