Ratchet makes a choked, wrecked sound in his throat, his optics widening... but his face sets and he thrashes in Tarn's grip, bringing his knee up again to catch Tarn square at the thin plating at the center of his pelvic span as he snaps his head forward, slamming the thicker plating at the center of his chevron against the front of Tarn's mask.

"Go to hell!" he yells, trying to kick Tarn again and struggling harder, venting roughly as he writhes in Tarn's grip.