I think it is almost impossible to figure out when you became a die-hard period. But one thing I do know is when I realized I was. The Pistons & Lakers were playing in the Finals in 88' on Fathers Day. My dad just happens to be a die-hard Lakers fan & I still was rooting against his Lakers as if my Celtics were playing them. My brother was upset with me because he said it was Fathers Day & I should be wanting dad's team to win the title. But dads team is the Lakers and I just couldn't let my hatred for L.A. subside for even 1 day! Thats when I realized I was sick with the passion of a True Celtic, knowing I bleed Green. My Dads team won anyway ruining my day & making his. Although Isiah Thomas did all he could to make me happy dropping 40plus on a bum ankle.