Full title: 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.
Here is the thing, you really need to know how to do THAT.. otherwise they'll die of shock or something else.
The main issue i have with getting conned by a wrong hangman is that its just so unprofessional