Since Inami will punch every male on sight wouldn't that cause a ton of male to also get punched during work, and on her way to work?
It's been mentioned that she often take roundabout to get to work and get information about road that has less male walking specifically so she won't punch them.
Face it, if this wasn't a comedy Inami would have been in jail long ago. All she needs to do is to suddenly turn the corner and see one of her male teachers or perhaps her principal for example.
