Arthur bruised his upper arm.

3 seconds sound clip from The Hitchhiker's Guide to the Galaxy (1981) - Episode 3 sitcom.

You can hear this line at 00:30:54.327 in the Blu-ray version of the TV Series.

Quote context

[...]

- Five minutes later, it wouldn't have mattered so much.

- Shocking cockup. The mice were furious.

- Mice?

- Earthman, the planet you inhabited was commissioned, paid for and run by the mice.

- It was destroyed five minutes before the completion of the purpose for which it was built. We have to build another one.

- Mice?

- Arthur bruised his upper arm.

- Arthur Dent, a perfectly ordinary Earthman, was rather surprised when his friend, Ford Prefect, suddenly revealed himself to be from a small planet somewhere in the vicinity of Betelgeuse, and not from Guildford after all.

- He was even more surprised when, a few minutes later, the Earth was unexpectedly demolished to make way for a new hyperspace bypass.

- But this was as nothing to their joint surprise

- However, all four of them are soon totally overwhelmed by surprise when they discover that the ancient world of Magrathea, a planet famed in legend, for its surprising trade in manufacturing other planets, is not as dead as it was supposed to be.

[...]