Pike's reaction was maybe not quite what she'd been expecting. He closed his eyes, and let his head flop back against the back of the couch, and the left corner of his mouth twitched up in an amused and, strangely, proud grin. Dawn had always been smarter than people gave her credit for, definitely smarter than most people her age. To make sure his hunch was right, he cracked open one eye to look at her, and spotted the hopeful look. Yeah, he was right. She was smart. She'd been able to pick things up from his behavior, and the way he carried himself, and the scar probably hadn't hurt. She'd picked up the little clues and she'd put them together into a cohesive and, more importantly, correct picture. Damn good work, for someone so young.
Not only could she pick these things out, she could zero in on them. Use them. Which meant she was also just a little bit cunning. Good girl. It would serve her well in the life of horror she was likely destined for, as the sister of the longest lived Slayer in history. He let his eye, just the one he'd already cracked, flutter open and swivel to look at her fully. The grin faded before he spoke. "I could." He opened his other eye and leaned his head forward again, looking her right in the eyes. He gave her a Look, one of those significant looks, that said 'I see right through your stealthy terms'. "But if I walk through that door, you might not like what walks back out. Just keep that in mind."
He wasn't angry. Hell, he was damn proud, and he didn't bother to hide that in his tone. For someone in their line of work, the brain was often the sharpest, most powerful weapon in the repertoire, and Dawn knew how to use hers. That made her dangerous already, and with a little more training and a little more experience? She could be a bad mofo, indeed.