If you fair catch the ball on a punt (the kind of kick where they drop the ball on their foot - not from those little stands), the clock stops on possession. However, I'm not sure what the rule is after a safety. But even if you could fair catch the kick, you are still 60+ yards (that's 55 meters for you metric fans out there). Few quarterbacks can throw the ball that far - and not without just heaving it high. and the defence will have more players in the end zone.
Teams have special plays for such returns where they toss the ball to players next to them. The trick is - the pass has to be behind the player w/ the ball. You can't pass it forward. It works every couple of years.
As for only watching the end of the game - that is true for all sports. If you like a sport, you want to see how they got there, tho. Kinda like listening to the solo in song and skipping the rest. I'll TV the Dallas Mavericks (there are 82 games in an NBA season before the playoffs, which is another 20-30 games. That is a lot of watching.) and try to pick up the game in progress. I seldom watch the earlier part of the game, tho.
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