My daughter went one better, she wrapped all the flexes in tissue paper, then used scissors to trim it and 'missed'. This caused a spark that set the tissue paper alight.
When I entered the room every flex was still live AND impressively on fire!
This is the same daughter that tried to cool down a bedroom light by pouring water on it. Later the same day she wanted an explanation of how the dishwasher didn't explode like the light bulb did, as the dishwasher has both water and electricity.
She's turned out very practically minded