Alecto was still angry, not quite having calmed down despite having seeked out her brother. Despite everything she did to rile people up and get reactions from them, she absolutely hated when people said things about her brother. And she hated that some of the Gryffindors seemed to know that and exploit it. Still, after her brother had been unable to completely calm her she had decided she needed a walk.
"Severus." She greeted when she saw him, taking her wand into her hand from where she had initially tucked it into the waistband of her skirt. She did not raise it at him as she might have for running into someone else, but kept it gripped tightly in her hand as she still she did not want to underestimate him and get caught off guard.