mr. haines. would you come in, please? >> good of you to be so prompt, mr. haines. this is lieutenant campbell. >> how do you do? >> won't you sit down? >> thank you, sir. >> i know you're a busy man, so we won't detain you any longer than necessary. now, you've already been good enough to tell us where you were last evening, and we've managed to locate the gentleman you spoke with on the train. >> yes, i saw him outside. >> will you come in, please, professor? >> mr. collins, this is mr. haines. he was with you on the train last night. >> i'm terribly sorry, but i really don't remember meeting this gentleman. unfortunately, i remember very little of our trip from new york. you see, we-- we had a little celebration. >> but we were sitting opposite each other in the observation car. you were singing a song about a goat. >> a goat? >> and calculus. you were going over a speech you'd made. >> i was? i'm very sorry, mr. haines. i--i certainly must have been celebrating. >> captain, is it so important