That's nothing.

I went in a BIG well known UK hosting company DC (which we colo'ed in) back in 2003 and they had racks of machines sitting on top of books on the bottom of comms racks rather than proper racks. We had to get a DL380 out from underneath a pile of 5 others. Not as easy as it sounded.

Cables everywhere. Power cables taped to everything. Total mess.

OpenBSD one is bliss.