''Why do we want to forget the lessons we learned in the past?''

Because it's Christmas. Because we're human and can forgive/forget. Because we can boot him if we so/choose. Because SP said IHO he hashad a change-of-heart. Because Don was a good guy till death of his son and he ovbiously lost-it temporarly; and some of us enjoyed his induction/deduction efforts.

aimho

e