for a return are not good and the returner is not certain he can successfully catch the ball on the fly; American players are generally taught not to attempt to touch a bouncing football. If any member of the kicking team touches the ball after the kick is made, without an intervening touch by the member of the receiving team, the receiving team may elect to scrimmage the ball from that spot of first touching, regardless of anything else (other than a penalty) that happens during the rest of the play. If the kicking team gains possession of the ball during the kick before it is touched by the receiving team, the ball is then dead. Often, the ball hits the ground and is surrounded by players from the kicking team, who allow it to roll as far as possible downfield – without going into the end zone – before grasping or holding the ball against the ground. (If a punt bounces into the receiving team's end zone, it is dead, and a touchback is awarded.) However, if the ball touches a member of the receiving team without his gaining possession (a "muff"), then the ball can be recovered by either team (but cannot be advanced by the kicking team). If the kicking team recovers the ball, they regain possession and are awarded a first down at the spot of the recovery. Following a fair catch in American football, the receiving team can elect a free kick (called a fair catch kick) from the spot the ball is received – and if the kick goes through the opposite goal posts, a field goal is scored. Fair catch kicks are rarely attempted in the NFL and are usually unsuccessful (The last successful fair catch kick was in 1976). The fair catch kick is not allowed in college football. In Canadian football, if the receiving team does not play the ball, the kicker, and any teammates behind the kicker at the time of the kick, can attempt to retrieve and advance the ball. This is further explained in the kicker advancing the ball section. Motion at the snap In American football, after all players are set, only one offensive player is allowed to be in motion, and he cannot be moving toward the line of scrimmage while the ball is snapped. The motion player must start from behind the line of scrimmage;