Xigbar swore. Violently. He had been expecting a lot of things, but a head butt was not amongst these. Narrowing his single eye at Cid, he did what instinct told him to do: he knocked his head back into Cid's. Harder. "You are one goddamn-" thunk "-stubborn-" thunk "-son of a bitch." Thunk. Xigbar sounded downright impressed though that didn't keep him from digging his elbow hard into Cid's stomach.