[jerlam]

In my experience, staff will do this if they are pressed for time, or when tourists don't know how to read or operate the payment systems and linger.

[nerdsniper]

Well, it’s an unwise strategy to use on me if they’re feeling pressed for time. I will get enjoyment from putting my foot down for as long as is needed to reach a resolution.

That’s a 20+ minute decision they just made to try to save a few seconds.