Some years back, there was a concept that entered into the self-defense community known commonly as the "21-foot rule." Essentially, if an attacker was within 21 feet of a person, they would very likely be within striking proximity by the time a person armed with a pistol could draw down on the assailant and fire two rounds center-mass. This rule isn't as accurate as people tried to claim it would be, but Phil likely believes that the close quarters of his home would mean that he would have an advantage using a bladed weapon like a hatchet, sword, or something similar. However, I would imagine he doesn't do any kind of training on how to use whatever he's got around his home in a manner of home defense, and as a result would panic pretty heavily if ever put into that situation. I think he'd wind up lodging that hatchet or greatsword into his wall and getting it stuck before successfully defending his home from someone who actually desires to steal his shit. However, I don't think he has any reason to worry about that. Nobody really plans on breaking into his home in the first place; and if they did, they'd probably wind up tripping over the Hoarders episode he calls an office.