Starscream just shot Jetfire the blankest and most deadpan stare he could muster. Really. He should have expected that sort of response -- Jetfire usually went off on those sorts of tangents.

But really?

"If it crawls inside your cockpit or somewhere, I'm not pulling it out."

And then he may have to lock Jetfire out of his own room as he can't have creepy spider getting in there.