I've been listening to his conversations, then reloading and ignoring them. They put the entire game on a time table, and then start putting dialogue in while the clock is ticking? Frell that. At least Portal gave a really good explanation for it, with GlaDos trying to distract you long enough for the deadly neurotoxin to kill you. You'd think, since Hope knows time is critical, he would shut the heck up and let me save the world.