"[They're] natural born enemies! Like Englishmen and Scots! And Welshmen and Scots! And Japanese and Scots! And Scots and other Scots! Lousy Scots! They ruined Scotland!"
—Groundskeeper Willie
Ahh, that explains a lot! Since I'm Scottish and Irish, English, Dutch, German, Norwegian and French I have a constant internal warfare. And, here I thought it was the flesh and Spirit.