betjeman's delightful poem "executive" had a great humorous take on this: You ask me what it is I do. Well, actually, you know, I'm partly a liaison man, and

betjeman's delightful poem "executive" had a great humorous take on this: You ask me what it is I do. Well, actually, you know, I'm partly a liaison man, and partly P.R.O. Essentially, I integrate the current export drive. And basically I'm viable from ten o'clock till five.