Do You Know Where to Find Pay Toilets?

According to Reddit, McDonald's drink has an RFID tag on bottom of cup soda fountain uses it to keep track of refills and won't dispense soda to untagged cups and bottles. They're locking you out. We're back to the, when he was a kid, you know, you ever encounter a pay toilet in your life? Oh, not until I'd been to Europe, but.