I am getting so excited to start raising a small flock of chickens with my young family. I have been worried that our chicken coop when finished will not be foolproof against critters. Now after reading all these posts about raccoons, fshers, oppossums, etc. I am petrified. The coop is surrounded by 1" poultry netting and has a metal roof as well. We have already purchased the wire. Can we double it over itself to make the openings smaller? Also, what exactly is involved in setting up an electric fence? Is it cheap? Is it safe with young kids? Do you have to wire the entire run or just part of it? Obviously you need to run electricity to the coop to make it work. Can someone suggest a brand? Thanks!