"What are you doing?"

It's very judgmental, considering that Koby's also in the middle of a sandstorm. But he has a purpose -- transporting stock for Nadine, come hell or high water or blowing sand. Plus he's so bundled up he looks like a Tusken raider (a reference neither of them will get, alas).

Koby tugs the scarf away from his mouth enough to repeat, incredulous, in between coughing out sand: "You're -- that doesn't hurt?"