Not yet. [ As much as Karkat hates to think it (and will never say it), he won't discredit Dave's suspicions. In all probability this is just some elaborate trap. Still, better safe than sorry. ]

I'm talking about your face smeared on some delicious raisin bread! Fucking pay attention when I'm making implausible, asinine threats! I'm onto you Strider. I am on you like sugar on saltine crackers.

[ He wheels around (nearly losing his balance in the process) to prod Dave in the chest. Try as he might to give Dave the most infuriated scowl, the effect is ruined by the red flush on his cheeks as a result of the fever. He gives up and continues on his stumbling journey. ]

I'll be chill when I'm dead. My empty husk will be so chill that I'll be frozen for sweeps and then revived by archeologists.

[ It's meant as a joke, but from the way things are going, that will could be a real possibility. ]