There are two things you should remember when dealing with parallel universes. One, they're not really parallel, and two, they're not really universes

Will you stop counting!' snarled Zaphod. 'Yes,' said Ford Prefect, 'in three minutes and thirty-five seconds.

They wouldn’t even lift a finger to save their own grandmothers from the Ravenous Bugblatter Beast of Traal without orders signed in triplicate, sent in, sent back, queried, lost, found, subjected to public inquiry, lost again, and finally buried in soft peat for three months and recycled as firelighters.

The Hitch-Hiker's Guide to the Galaxy also mentions alcohol. It says that the best drink in existence is the Pan Galactic Gargle Blaster, the effect of which is like having your brains smashed out with a slice of lemon wrapped round a large gold brick.

Imagine" he said, "never even thinking, 'We are alone,' simply because it has never occurred to you to think that there's any other way to be.

The single raindrop never feels responsible for the flood.

In fact there was only one species on the planet more intelligent than dolphins, and they spent a lot of their time in behavioural research laboratories running around inside wheels and conduction frighteningly elegant and subtle experiments on man. The fact that once again man completely misinterpreted this relationship was entirely according to these creatures’ plans.