Situation: once in middle school, we had to present something for a class (don’t remember which one) with power point slides
In those days, you had to bring the presentation in an usb pendrive.
For some reason, most of the class didn’t finish it.
I disabled usb ports from device manager.
Saved the day.
I also remember one time when one of our non-tech-savvy teachers almost lost it when her mouse pointer was out of control.
Thing is, that was around the time when wireless mice with usb dongles came up.
One of my classmates connected one on her pc and played with it in class.
Good times.