An honest mistake

One of the guys I work for is brilliant, but can sometimes be a bit distracted. This afternoon, he walked into Mike's office [without knocking] and asked Mike, "where's Kelly?" I'm not sure if Mike responded, but I hollered from across the hall, "that's not Kelly's office." Enlightened by this new information, he declared, "no wonder she's not in here" and proceeded down the hall to Kelly's office.