Guillermo Del Toro said this quote

I'm serious, Jim. You need to put this crap away. You walk into school on Monday talking to me, or anyone else, about the city's pesky troll problem, and you're not exactly going to get a lot of people saying, 'Gee, thanks for the warning.' It'll spread faster than mono. You think things are tough for us now? Jim, this will be the end. I'm sorry if you had a crazy nightmare. I really am. But I can't let you ruin our lives.