2006/07 La Liga's second to last round, Real Zaragoza v Real Madrid & Barca v Espanyol, both games played at the same time, Real were leading the league by head to heads and were losing in this game 1-2 while Barca were winning 2-1, meaning Barca are three points clear ahead of Madrid. With one minute left, RVN equalizes for Madrid and 18 seconds later Tamudo equalized for Espanyol (game is remembered for Messi scoring a handball goal similar to Maradona's one vs England) This meant both teams are on same points again and Madrid remained above Barcelona in the table.
I went mental that night after those two aforementioned goals.