Donna scoffed that a tumor could n't have made Pam violent .
After an operation , Pam had no memory of what Pam 'd done , and tried to make amends with Donna before being transferred to a facility in Chicago .
Donna scoffed that a tumor could n't have made Pam violent , but after an operation , Pam had no memory of what she 'd done , and tried to make amends with Donna before being transferred to a facility in Chicago .