No, because the second someone picks off the pass, he's kneeling down, because the game's over. Sure, if the pick is deep over the middle. But considering how often pick 6's come off passes in the flat where there is nothing but clear sailing for the defender, you have to think most guys are staying upright and running it in to clinch the game. A safety coming off a possession that starts with a kickoff, instead of a punt deep inside the 5, turnover on downs following a goal line stand or red zone turnover, is highly unlikely. Yeah, has anyone even seen a safety occur after a kickoff? it could happen pretty quickly. kickoff returner muffs the kick, ball rolls around the 4 yr line, receiving team recovers. offense steps back in a pass, defense gets a quick inside rush that forces the QB out and the DE chases after him into the end zone for the safety. those are 2 plays that can happen with out any imagination and would lead to a safety in that situation. a pick-6 to the flat would probably be more likely, tho.