Fun fact, I was out late last night at a local upscale gas station. Think clean, well lit, and modern touchscreen sandwich ordering. NOT a dirty, broken down pl

Fun fact, I was out late last night at a local upscale gas station. Think clean, well lit, and modern touchscreen sandwich ordering. NOT a dirty, broken down place. You'd expect the tech to work flawlessly in a place like this. I was second in line behind a younger guy who asked to use his iPhone tap to pay, the clerk shrugged and pointed to the card scanner. Guy taps his phone and the scanner bricks, hard. The young man was somewhat embarrassed for holding up the line and sheepishly dug some old school greenbacks out of his pockets to pay before slinking out the door. The clerk confusedly tried without luck to recover the register, before giving up and asking me and the other 6 people in line to move to another register. I had a little mini panic because all I had was a card, no cash, and about $20 worth of snacks. What do we do when electronics fail?