An Astros fan got cheating when the cameras showed him on TV. His sister in law noticed that he was with a woman that wasn't his wife and put him on blast.
This is a very tough way to get slipping, but you have to know if you're going out in public there's always a chance to be seen. And if you're going to a sporting event, you might just end up on TV.
Maybe next time you just hit up a movie or a bar a couple of towns over. The going to an Astros game is a bold move and one that didn't pay off for this genius.