There was the Drew Pearson catch in a 1975 NFC divisional round game. Of course he pushed off.
There was the 41-0 loss to the Giants in the NFC Championship Game following the 2000 season. Of course New York stole the playbook.
There was "Bountygate" in the NFC Championship Game after the 2009 season. Of course the Saints played dirty in injuring Brett Favre.
Every fan base has experienced some sort of sports heartbreak. It comes with the job description. As fans, we deal with the lows because, eventually, there will be highs that will mitigate years of despair.