Sirius barked out a laugh. "Cissa’s always been the one with the sanest head on her shoulders," Malfoy slumped at the knowledge, utterly relieved. "You on the other hand," Sirius said, eyes on Theo. "Remind me quite a bit of one of my cousins. I reckon he was the maddest of us all." Malfoy and Harry laughed; Theo hexed Sirius.