Client: It says my password is incorrect, but I’m sure I entered it correctly.
Me: Okay, let’s try to log on with my computer. Can I have your password?
The client hands me a (poorly) handwritten note with eight different passwords, all 32 digits long.
Client: It should be one of these.
Me: You know, there’s really no need to make your passwords that long – eight digits should be enough.
Client: That wouldn’t be very safe now, would it?!
Me: How many locks do you have one your front door?
Client: One, why?
Me: Why not ten? It’s much safer.
Client: That’s stupid, it would take ages to get into my house.