The OT goal in game 5 against Montreal.
Maybe with any other team I would have thought, okay, sucks they didn't clinch tonight but they came back after a bad start, played great and a bad bounce can happen to anyone. Instead I thought "this series is over".
Going into game 6 I just had absolutely zero faith that they'd come out, take control and finish Montreal. Game 7 was like the car wreck, knowing it was going to be ugly but feeling compelled to watch and suffer the inevitable.
Then to have to endure the off-season as not only did everyone keep their jobs but Dubas insisted he still believed in the core and basically just rinsed & repeated the same formula. Then the Kerfoot penalty in game 6 against the Bolts, same feeling as game 5 vs. Montreal.
So for me, this past off-season I was already at the point of learned helplessness. A tiny glimmer of hope that just maybe enough was enough in MLSE and either the board, Shanny or Dubas would do something substantial, but instead we got a virtual repeat of the previous Summer: Believe in the core. Tinker with the bottom 6. Bring everyone back that wants to be here.