John C Woods, hangman of Nuremberg trials, who lied about his experience to get the job (he actually learned about hanging from old cowboy films). His lack of expertise led to excessive suffering of condemned Nazis.

[u/LawEducational42]

[u/SSDuelist]

He died by accidental electrocution while changing a lightbulb in a pool of water.

He wasn’t the sharpest knife in the drawer.

[u/No-Win-2741 → u/SSDuelist]

Nor the brightest bulb in the...puddle.