Many people have hobbies, most of the time they are a nice distraction from the busyness of life. Often they don’t draw a lot of attention, unless you meet someone who is interested in the same hobby. In most other cities, even Metropolis, it wouldn’t be an issue. Gotham isn’t most other cities, it’s why Batman has a file on the known hobbies of Gotham citizens. Of particular note are those whose primary occupations bring them into contact with the caped crusader on a regular basis, whether friend or foe. Commissioner Gordon for example enjoys reading biographies, Batman sent him a new one on Churchill on his last birthday. Even…