A quick hit from the anonymous bin:

My mom always watches football, and I used to watch it with her all time when I was little. I didn't think my dad could play football because he wasn't born with "big shoulders"

K. Praslowicz shares another tale of being a stupid little child:

Back when I was a young boy I used to see the commercials on television for upcoming football games and wonder in amazement how they could be showing actual clips from the game if it hadn't been played yet. Of course, the footage they showed was from previous games.

It puzzled me to the point that one day I went and asked my father how this was possible. I'm sure he thought that I was stupid.