What do i do my dog will not stay in the electric fence? he is a lab and hound mix over 100 pounds mostly tall. he was trained perfectly fine for a couple years than he thought that he could run thought it and if he runs fast enough he will not get shocked. He dose every time. How do i know? He growls at it when he run thought it. Also we got the highest shock you can get but he dose not care( very tough dog ) We have been tying him up. But i hate tying a animal up so i want to retrain his but he knows the trick. He also has a friend he runs off with a friend. That friend is a dog,...that dog has never had the shock collar and i will NOT start with that. Two females to, that stay in the shock fence they are like 20-30pounds( my good girls ) SOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!! What do i do?