Sarah finds the rock at school.

Sarah was walking to class, when suddenly she felt her foot kick something small and hard. "Ow!" she said, looking down to make sure whatever she'd kicked didn't mess up her pedicure or expensive high heeled sandals. Seeing the rock, she picked it up. As she walked to class with the rock in hand, her airheaded brain began to wander, until she inexplicably said out loud, "I wish..."