With regards to the rouge or “single” point, in Canadian football place-kicks and punts are considered live balls which must be returned by the receiving team. A missed field goal (or punt/kick-off) is a live ball and if the receiving team fails to return the ball out of their end-zone, the kicking team is awarded one point.
Punt receiving teams are forced to return the ball as the punter (or any player who is behind the punter when the ball is kicked) can recover the punt with the kicking team taking possession of the ball at that point.
At the line of scrimmage the offence must have 6 players stationary within 1 yd of the line. The remaining 6 players can move in any direction before the snap as long as they don’t cross into the one-yd restraining zone at the LOS.
Once play is whistled in by the ref, teams must complete the offensive play even if no time is left on the clock (I know this confuses many American fans).
On punts, the kicking team must give a 5-yd restraining zone to allow the returner to catch the ball. The kicking team is penalized 15-yds if a tackler has encroached into the 5-yd zone when the returner touches the ball (or a 5-yd penalty if the ball hits the ground before it is returned.) These penalties are in addition to the yardage gained by the returning team.
Many American fans may wonder why Canadian football has such unique rules, are we just trying to be different? In Canada we started off playing English rugby in the 1850’s but soon started to modify and improve the game, like introducing the line-of-scrimmage in 1881 versus the traditional rugby scrum to put the ball into play…and the rest is history!