I saw one of these happen in a game, where the collision was really violent, knocking the screener A2 out of the game. The officials called a flagrant foul and ejected the defender B1. Sub A6 came in and shot both free throws to take the lead, and eventually the win. The B team decided to throw a long pass but the boy ended up throwing OOB at the other end. A gets the ball back, and ends up shooting another set of free throws because of an intentional foul by B. Freaking bizarre ending to a game.