The Captain's mother laughed at Wolfe's words. "I knew there was going to be a Favor involved. It's like an instinctive reaction for the Demons. They can't stop themselves from trying to con witches into debt."
Wolfe put a hand over his heart and gave her his best forlorn expression. "I'm just trying to help. But life requires balance. You can't just give and give without anything in return. It would unbalance civilization."
The witches gave him a look like they wanted to refute his statement, but they realized that he wasn't really wrong. If he just went around doing good deeds at random for anyone, it would be chaos the first time that he empowered a power-hungry or outright evil magic user.