If it gets a taste of chickens or eggs the only option is to call in turtle man or follow through with the pitch fork. Electricity works well I.e. electric fencing. The rooster would be the first helpless victim, they can't see in the dark. I've heard of folks losing entire flocks in one night... I in the other hand, have no problem resorting to violence to protect my food source... Besides that the coons are the worst. They carry some nasty parasites. Yes they are cute but they are lazy and go after the easiest food source they can find. Make your coop a hard target or you will be sorry.