There were things Cass had always avoided with his friends. Showing a too great understanding for Muggle things, speak too freely about...well anything, getting drunk. Most of all getting drunk - as it usually lead to talking too much.
Yet now, with Miles knowing everything, he didn't really see a point in not getting drunk. Maybe if he got drunk enough then he'd forget the pain. Maybe then he'd be able to close his eyes without seeing Percy looking at him like that. It was worth a shot, and he figured Miles probably had sobering potions should he need one.
'Sure,' he said holding out his glass. 'Merlin knows I need it.'