I was at an OB a few years ago, where a Producer was standing in the Satellite truck - leaning against the wall. He was holding onto the a rail in front of the breakers, and did actually knock one off - taking the programme off air! Luckily, it wasn't the circuit that had the satellite coder/HPA on it, and TX was restored quite quickly. It's been a talking point since!
A colleague (very wisely) once stopped me from using the USB port on the aircon control PLC on an OB truck tailboard to charge my phone from mid broadcast. He was quite right too, given the chaos of suddenly having Windows XP and ios being shoved together !
I secretly do love a breakdown as it means we can hear what filler music they have - guess there's no more 'Against the clock' by Murray Munro then (!). Sorry, that was such a TVF comment to make haha. I have not posted for a long time!
Whilst not TV related I do have my own cautionary tale involving USBs. I managed to take off the onair studio of a radio station as I unplugged someone's USB stick that they were playing music off, and crashed the playout software.
I had brought in some music on a USB stick to play off - I hadn't been in this studio for a number of years and they had upgraded the computers to ones that had USB ports quite close together. Luckily I had some CDs to play so we filled whilst a tech came and reset the computer.
The takeaway from the story...if it's plugged in, leave it the f.ck alone, if it's not plugged in don't plug it in.