No way, the electricity is overpowering, once it rips through their body, and they are near death, or dead, they go out. My whole point is that electricity inst pretty, or kind. And a stun gun without getting technical is the pattern of electricity that is best at stunning, HENCE "STUN GUN" Granted it is fast, but it isn't pleasant, if you think differently, try the stun gun on yourself, I have fealt one, you will change your mind, you might have to clean out your pants too. I have also hear it makes hormones and secretions come out of glands that are instantaneous and involuntary ejected, because of loss of body function, from the electricity.
The common misconception is that stunning with electricity is some type of kindness step, and many people believe that. These people have never been hit with a stun gun, of they are delusional about electricity. Just to be totally blunt there is no pass out to it, and there is no pretty or kind way to take an animals life. All you can hope for is fast humane kill and that is simple.
The best meat quality I have found, combined with clean kill, is to whack the head with a cleaver, drop the bird into a cone, and let it bleed out, then the work starts.