Thud! (Discworld 34)
Page 293
... and, because some things are important, the coach stood outside the magistrate"s house, down in the town. The horses stamped impatiently. The coachman waited. Inside, Lady Sybil darned a sock, because some things are important, with a faint smile on her face.
And floating out of an open upstairs window was the voice of Sam Vimes: "It goes, "Hruuugh!" It is a hippopotamus! That"s not my cow!"
Nevertheless, it was close enough for now.