Mom finds the rock (v. 2.0)

Jon's mother, Jane was in the kitchen fixing a quick breakfast before heading to work (she was a secretary at a local accounting firm). Her heels clicking on the linoleum floor, she walked over to the stairs and called up "Jon! Hurry up or you'll be late for school."
In a rush, Jon was running down the stairs. Only slowing long enough to grab a pop-tart(bypassing his mother's fresh made eggs), he was quickly out the door. Jane noticed he seemed really excited about something.
After Jon had left, she noticed a small box on the floor. She figured it was something Jon had dropped, but he was long gone. Looking inside, she saw the rock and took it in her hand. Then she looked around at the kitchen. "What a mess!" she said. "Jon really needs to be more responsible. Sometimes I just wish..."