I am considering the havahart electric fence kit to protect the outdoor portion of my ducks pen when I am away! They are safely lockec up at night. We have a fox in the neighborhood and Im sure raccoons too. Anyone have any experience with it? Its a small area to cover since two sides of the pen are against the house! I need to hot wire the two sides exposed to nature. It looks easy to use but is it effective? Will it stop a fox or coon? Any direct experience is appreciated.