The Awkward Etiquette of iPad Tipping

https://www.wsj.com/articles/you-want-20-for-handing-me-a-muffin-the-awkward-etiquette-of-ipad-tipping-1539790018?fbclid=IwAR23fBI6guGDGTTxcLJ7Ip4vs_1V75J0s1mSiRDjYeSNLLPjMkWEVwXNbCQ