"If it had been a test of your loyalty, you'd have failed it," Severus snapped. "Spectacularly." But the fact remained - evidence was a reasonable request. He thought of waiting until he had access to Dumbledore's Pensieve, which he expected in the near future, but didn't like the thought of letting Draco stew with his doubt for quite that long - and then, memories could be altered easily enough. He had no one else he could present for verification, and even a twenty-year story was still a story. His lip curled sourly, and he turned slightly in his seat. "You're more than a decent Occlumens," he said at last, a little dark. "Surely you know your way around Legilimency well enough to satisfy yourself."