Spoilers: The Golden Parrot - An unintended use case.

[Maher]

So it occurred to me that the easiest way to find out how many Golden Walnuts remain to be found, without leaving the game or checking the perfection tracker (which invokes Mr. Fizz), is to visit the Joja Parrot. At g10,000 per walnut, the number of walnuts remaining is clear from the proposed fee.