Sam Vimes had always been, by nature, a pedestrian. That’s why he was also going to take Willikins, who knew how to drive. He’d also demonstrated to Vimes his ability to throw a common fish knife so hard that it was quite difficult to pull out of the wall. At times like this, Vimes liked to see a skill like that in a butler.

– Willikins is a man of many talents |
Terry Pratchett, Thud!