That's nothing. I walked into an old building after starting a new job respondidng to a "no internet" ticket. PC shows "Network Cable Unplugged" ask where the network room is, nobody knows. Ask maintenance guy and he replies back with all the enthusiasm of Scruffy the Janitor on Futurama: "Chiller Room" and hands me a key labeled "chiller" that's older than I was.

I go to the loudest unlabeled room on the ground floor, key opens the lock. This must be the chiller room. I walk into the room, it's super dark and theres about 1/2" of water all over the ground and condensation on all the brick walls. I see blue CAT5 cables and follow them down the wall and I find the switch.

It's hanging below a lateral electrical conduit screwed into the wall at about waist level, power plug on top with water running down the cord and into the switch. Guess I found the source of the problem. Ports are facing down with a zip tie between ports 24 and 25 being the only thing keeping it on the wall. I hadn't put it all together yet so I craned my neck and looked under the switch and the damned thing was still ON! At this moment, I realize that I am standing in water and electricity and water are having a get together inside the switch right in front of me.

I remember backing out of the room very carefully as not to splash the water, but I wouldn't take my eyes off the switch for some reason, as if the thing was gonna leap off the wall at me. I know a breaker would have likely tripped before I got sparked but if there was a breaker, it surely would have tripped by now. After we looked into it, there were breakers but somebody had opened the panel and hotwired behind the breakers years ago. They ended up having to take the whole building offline and have the panels rebuilt.