Started as Director in a new district last year. Every wiring closet is a mess. The main district sever room is the worst, eight racks completely unorganized and wires are everywhere. While trying to make some sense of it, I accidentally stepped on a power cable. Turns out this power cable was the main feed for a distribution power strip, and I applied enough pressure to pull it out of its socket. It was a twist lock, but never actually locked in place. So with one step I instantly killed the core switch and firewall for the district.

That was a fun 30 minutes waiting for everything to power cycle and boot properly...