What’s fun about Jake Gyllenhaal on late-night shows is whenever he tells stories about his childhood, he’s also telling stories about Maggie Gyllenhaal’s childhood. You know, because they’re siblings. And, as siblings, they were both raised by their dad, Stephen Gyllenhaal, a film and TV director and apparent Halloween enthusiast. Last night, Jake was on Conan talking about how overzealous their dad was with making them costumes. He mocks his dad for his enthusiasm, but look whose children wear costumes for a living, Jake.