Tony took that as a hint that Stiles probably didn't want to continue talking about the dark things from his home. Tony couldn't blame him; he wasn't chomping at the bit to discuss everything from his reality either.
He glanced down at the momentarily forgotten books and groaned, but his face showed he was amused he fell into the trap of self-help material. "How to talk to a teen girl who seems to hate you," Tony replied. "How to relate to a kid you care about from home and now have guardianship of..." He laughed and winked. "You know the same thing every parent goes through."