Carelessness

Jon picked up the stone the next morning, carelessly not noticing that it was a completely different color. He needed it, because he was running out of time to get to school and didn't want to eat breakfast. Jon poured himself some cereal and milk, ate, and then wished "I wish I was at school." He screamed and then vanished into a thin mist, as his body dissolved, bits and pieces of him being relocated to every single place in the wish range except the school....