The subtle indirect threat wasn't missed on Scorpius. No, you would have to be very stupid to lie to this woman. He withdrew his hand and laced his fingers together with his other to keep from nervously fidgeting.
"No, I'm afraid you weren't around," he said, though he really wasn't afraid of that – he was glad for it. "I was training to become a Healer before I was put here. That's pretty much my life." It wasn't a lie. For years, he'd barely spent a waking moment outside St. Mungo's walls. Training and learning and working his arse off was his life.
"If you don't mind me saying, you look very young. What year do you come from?" Best switch the topic off himself before she started asking questions like what House he was in and whether or not he played Quidditch or called people Mudbloods.