Living with Bob and "Al"

At the hospital procedure, although Sheri had tried to explain Bob's limitations, the nurse asked Bob to verify his name and birthdate. "Al" was confused and started searching the room shifting his eyes from side to side. His eyes finally landed on Sheri sitting across the room holding Bob's cane. Bob finally spoke and pointed at his cane in Sheri hand said " it is over there" the nurse looked around in confusion. Then "Al" pointing at his cane said "right there, RZ" pointing at the initials that Sheri had burned in to his wooden saw cane. The nurse finally understood and then turned to Sheri and said " Can you confirm his birthdate for me?" 
She tried to tell her :)