I remember finding the cut off end of "T&E" (Romex-style) cable poking up in a flower bed once.
The fact that this cable isn't intended for direct burial pales beside the fact that when I checked it, sure enough the bare ends were still energized (and this being England, the hot was at 240V to ground!).
I have no idea what the cable once fed, but to leave an energized end poking up in the ground where kids and animals will be around is just unforgivable.
