[Dave kind of gives Karkat the longest look. Uh...]

Karkat, you look utter shit. What the fuck are you doing here? [It sounds like he's being nonchalant and dismissive, but he's legitimately worried why Karkat is here in his condition.]

You just don't board a train that's probably a trap to some remote land already looking like hell.

Also, stop yelling at the god damn penguin. You okay dude?