Severus knew better than to vocalize his wholehearted agreement to the 'brat' bit, choosing only to smile instead.
"It's dark, and late, and you are alone - all of which play on that fear thing I mentioned earlier, in the worse way," Severus shrugged. "And it's not that far."
Severus shoved his hands into the pockets of his trousers, not knowing what else to say. If pressed he would admit he appreciated Lily thought of him enough to track him down - never mind his earlier conclusions. But it was not as if he had the emotional skills to translate that into words, in any meaningful, eloquent way.