advance to the second round of the playoffs. Another well-known occurrence is an occasion during an NCAA game regarded as "The Play" in which the University of California return team completed five lateral passes for a successful return and a come-from-behind victory over Stanford. Fair catches: A kick returner may signal a fair catch if the ball will be caught with good field position, or if the kicking team's members are advancing so quickly that a return is impossible. However, he is penalized if he attempts a return after signaling a fair catch; likewise, players who tackle a returner who has signaled a fair catch are penalized. If a player waves for a fair catch and then fails to touch the ball, it may be downed as normal by the kicking team, but if recovered by the receiving team, may not be advanced. However, if any member of the receiving team catches a ball and then drops it, it becomes a live ball and may be recovered by either side. "Live balls" and "Dead balls": If a punted ball is touched after passing the line of scrimmage, even inadvertently, by a member of the receiving team it becomes a live ball and may be recovered as if a fumble by the kicking team. Conversely if the receiving team doesn't touch the ball and a member of the kicking team touches it, the ball is ruled down where it is touched and play is dead. All place-kicked balls—kick-offs, field goal attempts, and the like—are live balls, which may be played in one way or another by either team (subject to restrictions in the case of any "free" kick: see onside kick). Downing the ball If, the receiving team does not catch the ball, the kicking team may move into position and try to down it as close as possible to the opposing team's end zone. This is achieved by either catching the ball (generally when close to the end zone so as to prevent a touchback), or surrounding the ball and allowing it to roll or bounce, without touching it, as close as possible to the end zone. If the ball appears to be rolling or bouncing into the end zone, a player may run in front of the goal line and attempt to bat it down or catch it. If a member of the kicking team catches the ball before