A good lot of years ago, the D.U.P. in good old Norn Iron decided; in their wisdom; to close the leisure centres in the Portadown district, as it went against "the law of God" Anyway, the next match after the council decision was taken was Cliftonville (North Belfast Catholic team) vs Portadown. The Portadown fans were singing their usual, vitriolic, sectarian chants when the Cliftonville fans; to a man; started singing: "We can swim on Sundays, We can swim on Sundays, na,na,na,na...na,na,na,na! Started a full-scale riot! Any others?