Eve, Jeff, Hannah, and their cats moved on Friday into a house formerly owned by Jeff's grandfather. They were cleaning up the house and my dad was tasked with clearing a bookshelf. In doing so, he came across a text book. When he opened it up, he saw his name on the inside cover. On the outside was Jeff's father's name.
In short, my dad bought a book, which he sold back, and was then bought by Jeff's father, ending up in the house that Eve and Jeff would eventually move into. How cool is that?