What would actually happen if i used this

Actually on a person it takes 2X9V batteries.Would it hurt bad or even do anything its for cattle.

Try it and see. Walk up behind someone in the street and zap em in the ass and see what happens LOL! just kidding. Well, look at the size of a cow, if a cow can feel it then I'd bet that a human would definately feel it. I would love a stun gun or tazer gun but I live in the UK where it is ilegal to defend yourself, you've just gotta stand there and let people rob your ass and burgal your house.

slingshots are illegal here lol
i can see why u can take an eye out with one of them and a ball bearing lol

Its coming from overseas i hope it gets through customs i dont know if there illegal here.I will just say its for my dad he has a farm and cattle.Ive never seen him use one but i have seen one used on cows.I thought the shock or whatever from it would be crap with those little 9v batteries.A car is 12v i think and i have heard of someone getting a bad shock from a car battery.