Had to do a Video Conference from home.
So I fish out the USB webcam, and clip it to the top of the monitor.
The USB cable trails down the front of the PC onto the floor.
I pick it up and plug it into a USB 'ole on the front of the PC.
Nothing. No bing-bong, no blinkenlights.
Hmm. Try the other USB 'ole. Nothing.
Has Windows stopped seeing USB things?
No, memory stick is fine.
Re-boot just in case.
Nothing. Hmm, looks like the camera is kaput.
I go to put it away, and as I'm pulling up the cable, I notice...
I've not been plugging the webcam in and out.
I've been plugging the end of another random USB cable that was lying on the floor near the webcam's USB cable!