This happened during a demo of Tollgate, a tool for OpenWRT routers which let's users pay for WiFi with sats-denominated ecash. Friend of mine connects his phone to the wifi hotspot and is shown a captive portal that says it wants ecash from a certain mint. Friend doesn't have ecash. But I do. I whip out my phone and create a 100 sat token, show it to him as a QR code, which he copies and pastes into the captive portal. A few seconds later, he's online. 1 sat = 1 minute internet. We're just scratching the surface of what's possible.