I was a, 10 year old nerd for XXV, had never watched football really. Sat down with my dad to see this Superbowl thing, and he wasn't really a sports guy either. Seeing as it was more fun to have a team to root for, I asked my dad if had a favorite. He said the "Giants I guess, they are closer" (we live in CT). Simple logic because it didn't really matter to him either way.
Well I had a choice myself....root with my dad, or against my dad. To me, it seemed like more fun to be rooting against each other.
And here we are.