Jon thought about the nice old lady across the street. She was always nice to Jon, sort of like an extra grandmother. She spent all day in her garden, and baked treats for the neighborhood kids. He knew that was partly because her own daughter, now grown, barely spoke to her, and as a result, she hadn't seen her grandchildren in a long time. He'd never even met them, and she'd lived across the street his entire life.
He felt sorry for her. She seemed busy and in generally good cheer, but he could sometimes detect a hint of sadness. Maybe Jon could help her out. Jon thought of all the possibilities that he had at his disposal now that he had both a wishing stone and a way to reverse wishes. He could make any wish he wanted and reverse it if it turned out to be a bad idea, so that no one would get hurt, or even remember it, if he chose.
He decided to make his first wish for her. But what would he do? He didn't want to hurt Mrs. Wilson, obviously, so he would have to be careful about his wishes and make sure that he could reverse any mistakes he made. He couldn't make her family visit, they were out of range. He could try to wish her up some family nearby. Or he could even make other wishes that wouldn't necessarily make her life better per se, just more interesting. Jon could reverse the wish, so no harm would be done.
Finally, he made his decision.
"I wish that, until I wish otherwise ..."