Good evening everyone! We have a 120lbs black english lab who is 9 years old. For the majority of his life he has either been tied up because he runs away and apparently loves doggy jail, or he has been in a dog kennel. My husband and I both have agreed that we are tired of him being on a chain cause he is such a sweet dog and he is part of the family, so I wanted to build a fence on our land that we just moved onto in March, but my husband got the idea of an electric fence. I have my doubts on it working, but my husband has felt pretty positive about it. It has been installed for 4 days now and my dog seems to recognize the beeping as a warning but he doesn't head back to the house instead he just runs through and gets shocked, which doesn't seem to bother him. He actually sat on the line and shocked himself for like 10 seconds before i finally pulled him off of it. I know it has only been 4 days, and I don't expect a miracle just some helpful tips. The setting is on as high as it goes, so any tips?? We have been walking him around the yard about 5 times a day for about 10-15 minutes at a time. Anything else I can do? Thanks!