 We're being asked to tip in a lot of unconventional settings. Some that have become mainstream are places like coffee shops and food trucks and other retail settings where they flip that payment terminal around and prompt you for a tip. The craziest that I've seen personally are a self-checkout machine at Newark Airport. So I took a sandwich out of a refrigerator, scanned it at a self-service kiosk, and it asked me for a tip. I thought that was pretty crazy. Also a pick-your-own strawberry farm.