We built our first coop. The girls (17 &14) ran down to the Feed & Seed and bought 2 chicks. Loved on them until they were old enough to go out into the coop only to have the lab kill them. So now the coop is Fort Knox and the electric fence is in place but the girls say no more chickens! These are the first pet they have ever lost. How often do you lose a chicken? Any words of advice?