Are you conceding?' he says, his mouth falling open with mock surprise. 'Seems like that serum did you some good after all...' I shove him as hard as I can. 'Take that back. Take it back now.' 'Okay, okay!' He puts up his hands. 'It's just... I'm not very nice either, you know. That's why I like you so- ' 'Out!' I shout, pointing at the door.