Memories. And erasing them.

Jon thought for a moment. There he was, in the middle of the night, with shrunken people that had invaded his house moments ago. And, boy, he hated to be woken up by people with machine guns. And to make sure such wouldn't happen again... Well, he had to eliminate people. Or their memories. A well-worded wish or two would suffice. "I wish everyone that knows of this stone but me and Karyn would forget all about it and that furthermore anyone would only get to know about it if both me and Karyn wants so. I also wish that this stone can only grant wishes for me, Karyn and the people we want it to grant wishes to. And finally I wish everyone that breaks in my room in the middle of the night becomes an inflatable doll until I decide to change him or her back." - He then looked at the small people in front of him. He still wanted revenge. - Okay, now about you...