An unidentified man at Wednesday's Brewers-Cardinals game in St. Louis was seconds away from jumping off the upper deck railing when a group of fans intervened at the last minute. Sure, I could insert a joke here about the Cardinals actually being decent this year and there being no reason to jump, but I won't. That's not classy. I know how to read a room. Anyway, video went viral Wednesday night of the man dangling off the ledge in what appeared to be the 200s section for reasons unknown. The clip, taken from a fan below, is only 20 seconds long, but it might be the most tense 20 seconds at Busch Stadium this season. A general interior view of Busch Stadium during the sixth inning of the game between the St. Louis Cardinals and Miami Marlins in St. Louis, Mo., on July 18, 2023. (Brandon Sloter/Image Of Sport/Getty Images) Fans start to notice what's happening about five seconds into it, and then another man comes up behind the fan, grabs him and tackles him into the seats.…