In my favorite edition of "Pick the Lowest Bidder and See What Happens!" we contracted to move our classified data center from the Washington Navy Yard down to the Naval Information Warfare Center Atlantic. Some no-name company put in the lowest bid, despite zero experience with large-scale transportation of electronic equipment. I think they might have moved a few individual servers at some point in their past, but that was it.
They showed up at the data center with a bunch of dudes and refrigerator hand-trucks. They didn't take the servers out of the (first) rack. They just walked up, strapped it into a hand-truck, and started rolling away. And then they came to the three-step staircase down from the data center's raised flooring. Results were predictable.
One of the data center guys said he almost tried to "catch" the rack as it started to fall, but realized he would probably end up dead. So he just watched in horror as four state of the art (for the time) servers, 120TB of HDDs in RAID chassis, and assorted 40GB switches, routers, and patch panels tumbled to the floor.
We spent years playing the "blame game." The various insurers all agreed that it was a tragedy- just not THEIR tragedy. IIRC, the small moving company ended up bankrupt. I think we settled for some token compensation just so that we could get the servers up and running.
Surprisingly, the rack mostly survived. We lost a few disk drives, and it was hard doing the re-cabling at the new datacenter because the rack was deformed in four dimensions (the usual three, plus it had been torqued along its longitudinal axis). Pulling a server out of it was an exercise in creative geometry. You'd yank back, and little ball bearings would fly out of the rails and roll down into the cracks in the raised floor, never to be seen again.
But we actually did manage to get the cluster going. The mfr of the equipment did a hardware recertification, made sure all the PCBs were in their slot, all internal cabling was attached, etc. It never ran quite right after that, though. We had tons of "mystery errors" and spent more time restoring from backups than we did actually using the system (or at least it seemed that way to the poor schmuck- me- stuck with maintaining it).