I loved the line from the radio version where Ford says, “Drunk in charge of a time ship’s a pretty serious offense. They tend to lock you away in some planet’s stone age and tell you to evolve into a more responsible life form.”

Aaand, having read the books and listened to the radio serieses so many time (I read the first book just before the official publication date, as a friend had got hold of an advance copy) it has only just occured to me that that is exactly what happened to Ford and Arthur. Though whether humankind as descended from the B-Ark crowd has ever managed the more responsible life-form bit is very much open to debate.

I also, given this topic, love the time paradox part of how they eventually get rescued by Zaphod by waving down a purely potential ship with Arthur’s towel.