Shock collars

Question
My lab won't come when I call her and when she mis-behaves she won't quit.Are shock collars effective and humane?

Answer
Hello Andrew,
In my opinion, shock collars are not humane.  I have seen them leave horrible sores on a dogs neck - so bad that they need medical attention.  Not to mention that they can cause reverse effects --- ie, make the dog freak out.
If you are having problems with your dog it is best to hire a reputable trainer to help you with other techniques.