Theo picked up a drink and cast a quick charm over it to check for anything untoward - there was nothing - before drinking it. He'd learned that particular spell fast and sure as his father had poisoned and potioned a lot of his drinks until the casting of it became second nature.
He shrugged. "Possibly. But clearly I'm here. Maybe I'm just not doing as I'm meant." he said back, and that worked on a completely different level to the one in context.