Cuthbert doesn't want to cry, that's more weakness than he can afford right now. He's seen a lot of death and even when it's a friend it's more familiar than it should be. This is exactly the sort of thing he's been trained to accept, and he feels his heart harden against the emotions threatening to overwhelm him. He twitches when Kankri approaches them, upset that he didn't hear him coming.

"I suspect the rest of him is being cleaned up. Or eaten, if your kind are tasty. There's little enough food here that even one as scrawny as Karkat would make a decent meal."

He didn't mean it, but jokes were in his wheelhouse.