Two very elderly ladies were enjoying the sunshine
on a park  bench in Miami.

They had been meeting in that park every sunny day,
for over 12  years . . .chatting, and enjoying each others' friendship.

One day, the younger of the two ladies, turns to the other and says, "Please don't be angry with me, dear,
but I am embarrassed, after all these years. . .What is your name?
I am trying to remember, but I just can't. "

The older friend stares at her, looking very distressed,
says nothing for two full minutes,  and finally
with tearful eyes, says,

 "How soon do you have to know?"