It is just plain common sense (which doesn't seem to be all that common now days) not to leave firearms lying about when you are not in the immediate vicinity, whether or not there is anyone else around, simply because of their value, not to mention safety. Firearms and ammunition not ...
Wilson's library will serve a more straightforward purpose, too: In one corner stands a server rack that will host Defcad's website and backend database. He doesn't trust any hosting company to hold his controversial files. And he likes the optics of storing his crown jewels in a library...