re: Most embarrassing loss ever?

Junior year of HS. Had a 20-3 lead going into the fourth quarter against our arch rival on the road. They were 6-1 going in, we were 4-3. Ended up losing 24-23. I got over losses in HS fairly quickly, but not that one. That one and our home playoff loss the year before were brutal. The rivalry loss was embarrassing. We didn't want to really show our faces around town after that

Most embarrassing was two years after I graduated, my HS lost their season opener 71-3 to a team that finished 2-8.

When I was in 7th grade, our high school lost a tournament game 107-21. The loss was to St Vincent-St Mary's