My chicks have taken to sitting on top of the waterer... and pooping all day. I elevated it by sitting it up on a brick which is apparently no match for their keen hopping/flying skills. They have several perches- but alas, none are as good as the waterer. Tonight I tried to make a foil cone on top of it, but they quickly tore a piece off and started a rousing game of chick football. I quickly ended the game and confiscated all of their foil. Any suggestions??