Your using Wikipedia as a source of information..?

A static shock is not the same as a electric shock, are you telling me getting shocked from your carpet is the same as getting shocked by a electric fence?

And since your using Wiki as your info source it says right here

Go ask some people in Shutzhund and hunters who use them to train their dogs to hunt hogs I'm sure they will tell you different as these people would not be wanting to cause pain to their dogs to train them.