Dr Johnson does not hate the Scots-- or frogs, in their native element

Someone once asked him why he hated the Scots so much. "You are mistaken, Sir," he said; "I do not hate the Scotch; neither do I hate frogs, provided they keep in their native element; but I do not like to have them hopping about my bedchamber."

  --Samuel Johnson (1709-1784) in Samuel Johnson's Insults, ed. Jack Lynch