I always love asking them to give me a study proving the objects of the study they're referencing.

> Oh..... can you show me a double blind study proving that the fruit flies that you referenced in your study about evolution actually exist as a class of beings or are you just presuming that? How do I know there isn't just this thing here and that thing there and that you're mistaken about grouping them into a class? Prove it with science or gtfo! 😏