I came accross this picture taken a number of years ago now, I just thought I'd share it with you guys. We were in the process of removing equipment from the Data Centre and had followed the cable through to this area, where one of the old patch areas had been.
When we lifted the floor tiles to access the void which I should point out was 24" deep, we found this - the pair of cutters in the picture may let yo know what happened next.
As an aside, after disturbing the tiles I had to leap up and down on them to get them to go back down. So, this is what 45 years of cumulative cabling looks like for anyone that want's to know.