[ricudis]

And how would they know if my cheese has holes, given that there is a non-zero probability that a random cut over a piece of cheese goes through no holes at all? They would have to make so many cuts that the cheese becomes grated. And grated cheese most definitely doesn't have holes!

[brainwad]

They know the density of holeless cheese, and can compare to the sample. If it's underweight it probably has holes?

[IAmBroom]

Eureka!