Please, No Free, Unlimited Questions

(I’m a cashier at an amusement park that has a special deal involving free unlimited drinks.)

Customer: “How many free, unlimited soft drinks can I have?”

Me: *thinking I misheard him* “How many free, unlimited soft drinks can you have?”

Customer: *nods*

Me: “Sir, since our soft drinks are both free and unlimited, you can have as many as you want.”

Customer: *visibly brightens* “Thanks!”