Did anyone have the fun experience of ever going into the San Jose/Santa Clara Global Crossing Datacenter in the mid '90s?  I recall going in there to visit a new client's gear, no real security once on the floor.  Open racks fully exposed systems and wiring.  I was working on my client's systems that we next to a 19" telco rack with some shelves on it holding a router, switches, and servers.  I restrained from just tapping in!