More then 15 years of experience with dogs. We had our own dogsledding company with over 50 dogs at one time. I call David the dog whisperer. He is amazing with them. A barking, jumping, non behave dog need one hour with him to completly change his behaviour doing that and still have fun ;) . Our dog Daisy is a pleasure to be around and will also teach them manners and will give them the run of their life! She is a border collie cross Greyhound. Give us a call, you wont regret it.