Library Moebius Moment

Earlier this week on a reconnaissance mission to the library, I tried to recall a book from myself.

Me: "I want to recall this book."
Library dude [looking at computer screen]: "Ummm... do you have this book?"
Me: "No, I want to recall it."
Library dude: "Ummm... you have this book."
Me [doubting]: "I do? Wow. Huh." [now sheepish] "Oh yeah, I do."

Only later did I realize I could have chalked it up to secretly trying to test the accuracy of the library's computer system. This is my visual representation of the entire exchange, for you math nerds out there.