"I don't know what I'd do without you, Colin, sometimes." Jack hated when people insulted Colin or thought he was stupid or immature just because he was excitable. Colin saw so much of the world that most people missed because they were too caught up in what was 'correct' or the proper way to act or coming off as smart--even Jack got lost in that sometimes--but he always had Colin around to ground him and really remind him what was truly important.