Person A: My roommate was playing Grand Theft Auto the other day, but it was his first time playing a game in the series. That part became clear when he tried stealing the first parked car he saw... only to immediately get a wanted level because there was a police car nearby that he somehow didn't notice.
An egregious error (or altogether unwitting, on the other end of the spectrum of awareness) resulting in a response ranging from a harmless prank to serious vandalism (Localized to York, PA)
The act when someone makes a mistake that is so stupid, he is considered a rookie at it. The person must be called a rookie until the event is forgotten about, which in most cases takes a long time. Sucks for the rookie.