Farfarello smiled faintly, though Caim's weight forced the air out of his lungs and left him winded. He didn't need air to do what he planned, though--he only had to move very slightly to benefit from Caim's ill-advised tackle.

Twisting his right wrist subtly, Farfarello turned the box cutter so that Caim's lunging hand was coming down at the point of the blade rather than the handle. He let Caim grab at the claws, as they were quite well secured anyway, and just folded his fingers around Caim's a moment later, gripping his hand and digging the claws in.

With both of Caim's hands thus occupied, Farfarello snapped his head forward, not going for the more predictable headbutt, but instead aiming to fasten his teeth on Caim's throat.