Yes, I'll Buy It

Annoyed, Mike stuck his hand in his pockets. Absently fingering a small stone he found there, he muttered "I really wish this guy would just buy this house and stop nitpicking." He removed his hand from his pocket before the stone grew warm, so he had no idea it was a result of his wish when the client suddenly said that he decided to buy the house. But later that day, Mike discovered that the stone really did grant wishes, because ...