By the way, the "wrong" term was probably Scotch. The traditional distinction is that people of Scotland are Scots, or Scotsmen and Scotswomen, and the descriptive Scottish can apply to people or objects; you also often see Scots used as a descriptive as well, as in a good Scots piper. The term Scotch is applied to inanimate objects: Scotch whisky, Scotch eggs, and such. Some people consider calling a person Scotch to be not only incorrect but demeaning, though not on the level of an actual ethnic epithet.