Woman: Hi, I'd like to check out a computer. My friend here knows how to work it.
Me: Okay, do you have a library card and PIN number?
Woman: I have a library card and I don't have a PIN number.
Me: I can set the PIN number.
Woman digs and digs and digs for the card. Meanwhile a line is forming. She finally finds the card.
Me: What four numbers do you want for your PIN?
Woman: Do I have to have a PIN? I just want to work the computer.
Woman's friend: You have to have a PIN so you can use the computer.
Woman: But I don't want a PIN.
Friend: You have to have one.
Woman: I don't know what I want it to be. What if someone breaks into my account?
Friend: Just choose 4 numbers, any 4 numbers. Two ages, a year, anything!
Me: How about 1234?
Woman: That is too obvious.
I hand her a piece of paper and pencil and ask her if she'd like to write it down.
(Meanwhile the line continues to form, and those who are listening to this exchange aren't happy).
Woman: Um... um... I can't think. I'm not good at these pop quizzes.
Friend: I am so sorry.
Friend whispers something to the woman, and the woman writes down the 4 numbers.