are unable to go the length of the field, they advance part of the way and attempt a drop kick, trying to score a field goal, or recover the ball in the end zone for a touchdown. Like a punt or missed field goal, the team receiving the kick is allowed a 5-yard buffer to recover the kick. Conversely, the defence, facing a last-second field goal attempt in a tie game or game they lead by one point, often positions its punter and place-kicker in the end zone. If the field goal is missed, they can punt the ball back into the field of play and not concede a single. Multiple such kicks may be attempted on the same play. During the October 29, 2010, Toronto Argonauts game against the Montreal Alouettes, four kicks occurred in one play; after a Montreal missed field goal, the Argonauts punted from the end zone to about the 20-yard line. The ball was caught and immediately punted back to the end zone by Montreal to attempt a single, and finally the Argos punted, but failed to kick it out of the end zone, where the Alouettes recovered it for a touchdown. American football only allows free kicks and scrimmage kicks made from behind the line of scrimmage; any kick beyond the line of scrimmage or after change of possession would result in a penalty. (Some levels of American football allow the rare fair catch kick, which according to the NFL rules is neither a free kick nor scrimmage kick, but sui generis.) Safeties In both American and Canadian football, a safety (or safety touch) awards two points to the defending team if the offensive team is brought down in their end zone. In American football, the team giving up the safety must take a "free kick" from their own 20-yard line. In Canadian football, the team being awarded the two points has the option of scrimmaging from their own 35-yard line, kicking the ball off from their own 35-yard line, or having the opposing team kick off the ball from their own 35-yard line. In 2009, the CFL changed the last option to be a kick-off from their own 25-yard line. Points after touchdown In both games, after a touchdown is scored, the scoring team may then attempt one play for additional points. In Canadian football, this play is called a "convert", and in