Here's a nightmarish tale that happened to me not long ago:
One of our stores was moving, so they asked me for help with the systems. Thinking it'd be fun, I said yes, and went. All I had to do was unplug everything and reorder it at the new location, sounds really easy right?
They hadn't cleaned the computer area in ten years.
Each time something broke, they replaced it...and left the old cables there. But that was nothing compared to just a little later, when I tackled the network situation.
For two stations, they had:
2 routers. 5 switches. A wi-fi adapter, even though the routers had that capability, an adsl modem backup and a...56k modem. ALL plugged. ALL linked.
Turns out they switched providers, and they didn't bother removing the old equipment. They just linked everything together.
Man, what a night it was -_-