He sees what Lelouch is trying to do and snarls, holding him at arm's length. "What the FUCK do you think you're doing?!" He releases his grip on Lelouch's shirt and grabs him this time by his neck, putting pressure on his windpipe. Anger was pounding through him, anger and disgust; it's so strong he's almost seeing red as he presses, presses and digs his nails into Lelouch's neck. His grip loosens a second after, however, something sneaking in and stopping him. His nails aren't pressing hard enough to draw blood now, but hard enough to cause pain.