Back before the Bruins moved to TD Garden, their home ice was never afforded the luxury of an air-conditioning system. Unfortunately for them, this was a problem when the warmer months came around as it would often result in fog rising up from the ice due to severe condensation. Such was the case during Game 4 of the 1988 Stanley Cup Finals between the B's and Edmonton Oilers--a game that ended up being cancelled altogether due to adverse playing conditions. However, it wasn't just the fog that contributed to the cancellation. Early on in the second period, the power gave out out in the arena, forcing a replay of the contest two days later. Double fail.
4. 1988 Stanley Cup Finals