A company selling a service to fix caller ID name errors for businesses, by contacting the 10 to 20 maintainers of databases that generally aren't updated from each other, uses this horror story to sell its services:
A securities trading firm assumed assets of another securities trader who is now incarcerated. The incarerated trader had nothing to do with the business, but his named lived on in caller ID displays, depending on the caller party's telephone company.
On many systems, caller ID would display Bernard Madoff.
For some reason, the trading company's sales calls didn't go so well.