I read about some pranksters who figured-out how to hijack a Fred Meyer's in-store intercom system. They'd call up and ask to be switched to extension such and such or something which was the in-store intercom. I'm not sure exactly how they got onto it really, I could probably google the story, but from what I recall, once they were switched, the call couldn't be terminated, so they were free to read poetry, play bad guitar music, bad-mouth the store, basically anything. Then I guess it couldn't be traced either once they were inside their phone system.

They had these long hillarious blogs somewhere where one would be doing something and the other would walk over to the store and listen and watch all the customers laughing and observe technicians trying to shut them down. I guess they couldn't other than disconnect the system altogether. Aparently even the in-store intercom volume was fixed otherwise they'd have turned it down to zero right off the bat. I guess they've redesigned their phone systems so you can't do that to Fred Meyer anymore but if you can find it, it's really really funny reading.

Swaz