I read this story as part of The Time Traveller's Almanac.

A typically wacky, entertaining story dealing with flying filing cabinets, lobsters (many...) and designer humans from Douglas Adams. As science fiction is wont to do, he takes various digs at "life as we know it", but all in good humour. A fun read.

Given that I was expecting a story dealing with time travel, I was very disappointed to discover that it is not. This has nothing to do with the story itself, but everything to do with it's selection for inclusion in The Time Traveller's Almanac.