When I was like 6 or 7, I was pulling for the Steelers in a Cowboys/Steelers game because I liked the bright Yellow and black uniforms. My Father was of course watching the game. He was born and raised in Dallas and I was born in Dallas.
Dad sat me down right then and told me in no uncertain terms that I was a Cowboys fan, born and bred and that there would be no rooting for any other team under his roof.
From that day on, I've never pulled for another pro team unless it somehow benefited the Cowboys.
I've silently thanked my father for that many, many times.
"When you watch him play, you’re like, ‘Oh God, he’s going to kill somebody,’ and that’s what I like about the young man.” ~ Jerome Henderson on Cowboys rookie safety J.J. Wilcox