This quote from Terry Pratchett's 'The Building' mixes dark humor with a reflection on violence and intent. The character Vimes refers to a barber named Sweeney Jones, who is noted for having killed people, albeit unintentionally due to terrible shaving skills. This clever play on words highlights Pratchett's ability to blend the macabre with comedy, offering a satirical take on recklessness and incompetence leading to unintended consequences.

The quote provokes us to think about the nature of harm, intent, and accountability. Vimes's comment, "The best you could say is that he didn't mean to," invites readers to consider the difference between deliberate harm and accidental damage caused by negligence or incapacity. It's a reminder that harmful outcomes can arise even when one's intentions are not malicious, raising questions about how society judges such acts.

Moreover, Pratchett's characteristic wit illuminates a grim scenario with a humorous twist, using the mundane act of shaving to depict something far graver. This contrast between the ordinary and the deadly serves as a commentary on how everyday situations can spiral into tragedy due to human error. It forces us to confront discomfort with laughter, an effective strategy that can lead to deeper contemplation.

In sum, this passage is not just a funny moment but a nuanced reflection on the complexities of causality, intent, and morality. Through his unique storytelling lens, Pratchett encourages readers to look beyond surface events and understand the layers beneath, all while delivering his message with a charm both dark and delightful.