2. An Old Lady Unmasked Him
Unlike a lot of other superheroes, Batman has done a pretty good job of keeping his secret identity just that over the years. The Riddler is one of the few heroes to have figured it out, and even that was retconned. Well, one silver age comic featured his Aunt Agatha unmasking him in front of a couple crooks he and Robin had just taken down. Thankfully, this one just one of those hilariously misleading covers of the time, but Batman being unmasked in such a humiliating fashion probably led to him rethinking that cowl design.