Koby wheezes out a thanks, downing about half of the water, then setting about pulling his shirt out of where it's tucked into his pants -- an effort to keep sand from getting inside his clothes. It's clearly failed, though, if the cascade of the stuff from within his layers is any indication.

The scars get a cautious, sideways look as Koby reaches up to wipe his sandy face off with the hem of his shirt, coughing a couple times more. There's a question evident on his face, a moment of concern and he can't stop himself from wheezing out: "That's not...from just now. Right?"

If it is, he's going to freak out, Garrus.