Plaintiff mother sued for negligent infliction of emotional distress.  She was on the telephone with her daughter while the daughter drove a car at an intersection where her vision of on-coming traffic was obscured by defendants’ negligent maintenance of vegetation on adjoining property.  That mother heard the crash on the phone was insufficient in itself to allow her to sue.  Under Bird v. Saenz (2002) 28 Cal.4th 910, she also had to perceive that the crash was due to defendants’ negligent maintenance.  But plaintiff was allowed to amend the complaint to allege that she was aware of that fact as well since she had driven by the same intersection often and was aware of its dangerous condition.