The cactus thrives in the desert while the fern thrives in the wetland.<br /><br />The fool will try to plant them in the same flowerbox.<br /><br />The florist will sigh and add a wall divider and proper soil to both sides.<br /><br />The grandparent will move the flowerbox halfway out of the sun.<br /><br />The child will turn it around properly so that the fern is in the shade, and not the cactus.<br /><br />The moral of the story?<br /><br />Kids are smart.