He even went one further, saying he would count the two previous games they've already won against the Cubs, so he only has eight more to go. Arizona is trailing 1-0 in the second inning as I write this.
This is reminiscent of Lou Piniella dying his hair after a Tampa Bay
Update: The D'Backs really know how to spoil a party. They lost 10-6 last night to the Cubbies, so no mohawk for Gracie.