" Why does Eleanor let you have that much acid?" he asked. "Why would you want that much acid? You don't need that much acid."
"Except that it appears I do, since I have just enough to dissolve a human body, and we have a human body in need of dissolving," said Jack. "Everything happens for a reason. And Eleanor didn't 'let' me have this much acid. I sort of collected it on my own. For a rainy day."
"What were you expecting it to rain?" said Christopher. "Bears? "

― Seanan McGuire , Every Heart a Doorway (Wayward Children, #1)