Probability

My coworker suggested that the subject of the day be Probability. The word Probability derives from the Latin "probity", as in the Probity Probe made famous in J.K. Rowling's Harry Potter series. A Probity Probe detects spells of concealment and hidden magical objects. The detector made its first appearance in Order of the Phoenix as thin and golden in colour. After Voldemort's return, Probes were used as part of the increased security at Gringotts. They are last seen when Harry, Ron, and Hermione arrive at Gringotts to rob the vault of one of Voldemort's Horcruxes. A quotation, if you will: "I got it out of your vault for you, Harry, because it's taking about five hours for the public to get their gold at the moment, the goblins have tightened security so much. Two days ago Arkie Philpott had a Probity Probe stuck up his... Well, trust me, this way's easier."

Anyone on whom a Probity Probe can be used has Probability.