The one that jumps to mind happened a few years back our offices had just expanded and I was busy laying extension cords around the place along with network cables. At the time my wisdom teeth were giving me severe problems and that day I was pissed off, groggy from meds and in a bit of pain.
So without thinking I decide to trim a power cable that's plugged into the wall and already switch on. There was a loud bang and I melted the blade bit of the wire cutter, was I ever glad that thing had rubber handles.
