Sidewalk explodes after kid drops sparklers down a manhole.
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Previously:
https://www.homemadetools.net/forum/...083#post125701
https://www.homemadetools.net/forum/...871#post129275
https://www.homemadetools.net/forum/...907#post102827
https://www.homemadetools.net/forum/...734#post124027
https://www.homemadetools.net/forum/...229#post101052
https://www.homemadetools.net/forum/...737#post102333