I Only Urinate in My Own Fireplace

In 1811 [the new British Minister to the United States Augustus John] Foster was thirty-three. He was handsome, self-assured, and so confident of his superior breeding that he felt able to ignore American crudities and insults. Foster's diary and letters are full of contemptuous comments - he was particularly amused when an uncouth congressman urinated in his fireplace and when other legislators, confusing caviar for jam, had to spit out their overly large mouthfuls.

Bradford Perkins, Prologue to War: England and the United States 1805-1812.