He thought about his brother...and suddenly the image of his mother came into his mind. She wouldn't appreciate it if he turned Jon into something. While Mikey wasn't the most wonderful person in the world, he suddenly felt a twinge of conscience.
Maybe he should find out why Jon acts like he does. "I wish I knew what annoyed / stressed / upset Jon today." The information flowed into Mikey's brain. It consisted of the usual mundane troubles of the day, then feelings for Karen, bullying and insults from Biff and Sarah. He brushed past the mundane, quickly bypassed the Karen troubles, which to him were yucky to the extent he could understand them and came to Biff / Sarah. Bullying was something Mikey understood, having been subjected to it himself.
Mike pondered how to deal with Biff. He had an idea. Since Biff was always causing Jon misery, he should give Jon pleasure instead. Perhaps the thoughts of Karen were lingering in his subconcious mind and effected the wish he now made. "I wish that every time Biff bullys Jon, he would begin to feel the need to give Jon pleasure, sexual pleasure. That need would grow stronger every time he bullys him, would become an undeniable need by the end of the day and be permanent. Also, Jon would willingly accept Biff's offer."
Mikey giggled thinking of what Biff would soon be doing. Now, as to Sarah. Mikey knew very little about Sarah. Going to school with Fred Orr had given him a general idea of what a MacMillian was. The only other things he knew was stuff he overheard in conversations by his family. What he could put together from all that was that Sarah acted the way she did because of the things she had. Perhaps he could help Jon by taking away what she had. He could make her poor, but that would be causing her the misery she caused Jon which would be to act like her. If she and Jon were equal then she might not be nasty to him and if she was it would be her own fault where she ended up. Of course, after the last wish, Mikey now had a taste for adding a twist to a wish. He pondered for a moment, then made his wish. "I wish that everytime Sarah insults Jon, something of Sarah's is given to Jon and everyone, including Jon, would believe that was how it had always been." Mikey did not realize this wish could easily result in unexpected consequences. (NOTE: The stone could handle this in two possible ways. It could take something from Sarah, leaving her without what was taken and given to Jon. Or it could work toward creating equality by duplicating the thing from Sarah and giving it to Jon. A combination of the two would also work with the wish randomly deciding.)
And now, back to Jon and Karen.....