At this cafe, you get what the person before you ordered. The next person gets what you ordered.
What a wonderful, bizarre idea (especially if you ignore the unresolved question of what the first customer of the day receives.) When you order, say, an ice cream and coffee, you pay for them and find a seat. In a few minutes, you're called to the counter where you pick up, you guessed it, not an ice cream and coffee. You receive whatever the person before you in line ordered.
So what's to keep people from ordering an inexpensive item and hoping the person before them was a high-roller? Well, I guess shame.
Also, the cafe has a few rules. Among them:
Treat the next person. What to treat them with? It's your choice.
No buying twice in a row.
Please enjoy what you get, even if you hate it. (If you really, really hate it, quietly give it to another while saying, "It's my treat...")