I graded the journals. The assignment is borrowed mostly from Sisyphus; I'd asked the students to choose the most important word in a short passage. I'm not concerned at all that they choose a word I think is important, but that they explain their choice well.
This passage is a funny one. And you can really see which students totally get the humor, and which don't. And the ones who get the humor, get the whole thing, while the ones who don't, just don't.
It's not usually as clear as this, because when they're working on a more serious passage, they can do pretty well focusing on a word even if they don't get the whole thing. But humor is more demanding.