Holy cow, I wrote a book!
Some time ago, I told the story of
how one employee's phone received calls intended for
a local radio station's contest line
due to people dialing seven digits instead of ten
and defaulting to the wrong area code.
Upon reading that story, a colleague of mine pointed out that one of the
conference rooms in his building has a similar problem.
The direct line for the conference room is identical to the
request line for a local radio station, save for the area code.
People who work in the building know never to answer the phone
in that conference room.
(Although apparently there have been a couple of pranks
involving the call-forwarding function on the conference