My son asked me not too long ago, what was the more painful sports memory for me, seeing the Pats lose the perfect season or seeing the Sox lose Game 6 to New York. My answer was "neither," it was the Ben Dreith playoff loss.
Obviously this game was not for the championship as were the other two, but it was my first direct experience with a loss of this magnitude (I was too young to really follow the Sox in 1967) and (unlike with the Sox in 1975) it was a win that was (in my view) taken from them by a corrupted referee/officiating crew rather than based on what a player or the team as a whole actually did or didn't do on the field. From that point forward, as much as I've loved following sports, and still do, I've never fully believed things in the major professional sports were "unquestionably on the level," and my "sports BS meter" is too often alerted to the "favored story lines" (*cough* Peyton Manning *cough*).
Little did I know at the time that I'd be witness to the 1978 Sox collapse/Bucky Freakin' Dent, Bruins too many men on the ice, Len Bias, Game 6, Celtics lottery woes, G.M. Mike O'Connell, Victor Kiam/Sam Jankovic/Rod Rust, and the Parcells Super Blow (not a typo) ... and then came Belichick and Brady.