The Meech Lake Accord had failed the day before and it was St-Jean-Baptiste Day, so for the first (but not last) time in Expos history, many in the large (for the Expos) crowd of 25,000 booed Canada's national anthem. Anytime the Expos played at home on St-Jean-Baptise Day after that, they played the anthems during the warmup so that no one would be there to boo.
We sat in the first row of the upper deck, right behind home plate. Dennis Martinez had a solid start, but the relief was weak and the Pirates won the game, retaking the NL East lead (which they kept for the rest of the year). Disappointing, but I'll never forget how awesome it was to eat peanuts and ice cream and watch the Expos in the Big O on a hot summer day, during that brief time when the retractable roof actually worked.