He inched his way up the corridor as if he would rather be yarding his way down it, which was true.

The lights were off so that his heads could avoid looking at each other because neither of them was currently a particular engaging sight, nor had they been since he had made the error of looking into his soul. It had indeed been an error. It had been late one night-- of course. It had been a difficult day-- of course. There had been soulful music playing on the ship's sound system-- of course. And he had, of course, been slightly drunk. In other words, all the usual conditions that bring on a bout of soul searching had applied, but it had, nevertheless, clearly been an error.

He had extracted himself from the Cambridge one-way system by the usual method, which involved going round and round it faster and faster until he achieved a sort of escape velocity and flew off at a tangent in a random direction, which he was now trying to identify and correct for.

It all sounds rather naive and sentimental to be talking about children laughing and dancing and singing together when we all know perfectly well that what children do in real life is snarl and take drugs.

In order to fly, all one must do is simply miss the ground.

If we see you smoking we will assume you are on fire and take appropriate action.

Here's what the Encyclopedia Galactica has to say about alcohol. It says that alcohol is a colourless volatile liquid formed by the fermentation of sugars and also notes its intoxicating effect on certain carbon-based life forms.