BERNARD THE ROBOT LOSES HIS BOTTOM ON THE PARK SWING, AND SETS OFF TO FIND IT. EVERY TIME HE GETS CLOSE, IT DISAPPEARS AGAIN! BIRD WAS USING IT AS A NEST, BUT IT WAS TOO HEAVY; BEAR USED IT IN HIS DRUM KIT, BUT IT WAS TOO TINNY; THE SQUIRRELS BUILT SANDCASTLES WITH IT...AND...