Every superhero needs a place to retreat and think about a case, lick their wounds after a fight, or even occassionally bring a date1. Depending on the hero’s means and persona, that place can take many forms: a one-bedroom apartment, a mansion, a cave, a whole building, a satellite, or a base on the moon2. From time to time these sanctums are infiltrated so many crime fighters put measures in place to prevent, and even repel, trespassers. What duty do the owners of these hideouts owe to would-be intruders? For that matter, what right do they have to build these hidden fortresses without permits and without paying taxes?