Should You Befriend The Mother Of Someone Who Tried To Destroy You?

When she made the appointment for aesthetic services, her name sounded vaguely familiar.  I assumed I would recognize her when she arrived.  I didn't, but my co-worker did and summoned me into the reception area with urgency.

"Do you realize who that is?"  she asked staring wildly.  The look was a definite indication that my client was not welcome there.

"No....why?"

"That's Roger's mother!"