chucked a massive wobbley

Gonna start using that at work

I've plugged a standard console cable into an APC UPS. did that twice before I realized what was going on. APC decided to do a pinout on their serial platforms that gets triggered with a "Cisco" console cable to shut down. What. The. Fuck.

I once cut the internet for an entire school by plugging in a router.

They had a bunch of misconfigurations in their spanning tree and loop detection systems, and detected the router as a loop. That triggered the network to reconfigure itself using a different route, which was invalid, so the whole network went down.

Their IT wasn't gonna be there for a few days, and I didn't set up their network or had any access to it, so I think it stayed down for almost a week.