It's Rivalry Week!
[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!
Lest we forget the true meaning of "cockfight"
And no rivalry week is complete without paying homage to the original gangsta rivalry. Alexander Hamilton and Aaron Burr.