Rodolphus didn't move from his seat all the while Adrian was hurriedly changing. Voldemort had been the type of leader that in the beginning was all talk, and then later was all torture to his followers. Rodolphus was different in the way that he acted much like an abusive significant other. Abuse followed by small kindnesses, rinse and repeat.
"Vodka on the rocks." He answered flatly, his hand waving almost dismissively.
"I've not come with a specific mission just yet, Adrian." He remarked, using the boy's name as if he was indeed a caring friend or father, "Just to let you know to be aware." A smile spread across his face. "We might be able to get quite a lot of money toward the cause."