One of my neighbour’s sons used an electric lawnmower for the first time last week. He did not appreciate that the air drawn up by the mower could also lift up the power cable as he run over it cutting the cable in halve. Fortunately the electrical was protected by a residual current device (RCD) so the power was safely cut in milli-seconds.
If you are gardening next weekend you might want to check out this infographic about safety in the garden
Source: Infographic: How safe are you around the garden from Electrical Safety First.