My dad grew up on a farm, and had to help clean the chickens. For years, he talked about how he hated "grasshopper chickens".
I've had my share of home-farm raised chickens, and I have to tell you, I really like the modern "factory chickens" better. The free range chickens taste a little rank to me...kinda like grashoppers.
As far as the way the factories dispense the birds...I have never heard the electrocution thing, but maybe some places do that. I guess it would be more cost-effective than taking time to wring their necks or chop their heads off individually. Really, what's the difference?
We get by with a little help from our friends