The Zidane Head-Butt

Two months after the World Cup ended, Zinedine Zidane's head-butt in the Italy-France final is still making news. Yesterday, the Italian defender Marco Materazzi who was on the receiving end of the head-butt spoke out. According to Materazzi, he tugged on Zidane's shirt who said "If you want my shirt so much I'll give it to you afterwards." Materazzi's reply: "I'd prefer your sister." That's a pretty funny reply. Maybe not as good as the George Costanza's jerk store line, but not bad. However, why do I think that maybe Materazzi is telling the entire story. Was that line really worth a head-butt? I can't see Joey Porter responding like that to a "I'd prefer your sister" line.