Not sure if this is the right place for this story/question, but here goes.
I recently graduated from college and moved from the campus dorms to an apartment that I'm sharing with a roommate. While in the process of moving, I purchased my first handgun, which I had planned to do for years, but was unable to until recently because I lived on a college campus (weapon-free/violent criminal empowerment zone).
The issue is that I haven't told my roommate that I own firearms. AFAIK, he hasn't figured it out yet, as they are either [A] concealed on my person (home carry, I haven't gone for my concealed handgun license yet) or [B] unloaded, locked up, and well-hidden. However, he's seen a few packages come in the mail for me with not-so-discreet return address labels (I'm looking at you, Crossbreed Holsters). I've managed to casually pass them off as sturdy belts (absolutely true) and tool sheaths (a semantics game, but technically true), but I wouldn't take that at face value if he were telling me the same thing. I have an order of ammo coming in next week, and that's going to be a bit harder to explain away.
I've "tested the waters" on his beliefs about guns for defensive use, with less-than-favorable results. He recounted a story of his aunt and uncle buying a handgun for home defense. One night the uncle awoke to the sound of breaking glass. He looked over and saw his wife was not in bed beside him. He loaded the handgun and crept toward the kitchen, where the sounds of breaking glass seemed to be coming from. When the uncle reached the kitchen, he raised the handgun, flipped on the light, and (in my roommate's words) nearly shot his wife to death. The aunt had woken up, gone to the kitchen for a glass of water, dropped the glass, and was in the process of cleaning it up when the uncle came in, gun leveled. The next day, they sold the handgun.
I had to resist the urge to criticize from my comfy armchair and tell him that [A] it sounded like his aunt and uncle never availed themselves of personal defense training or self-education, [B] they should have kept a powerful flashlight next to the gun to positively identify potential intruders BEFORE taking them at gunpoint, and [C] guns are inherently only as dangerous as the people holding them, if their behavior reflects ignorance, negligence, and/or malicious intent. Instead, I thanked him for sharing his story, suggested that defensive firearms are akin to fire extinguishers in that they are both pieces of life-saving equipment that are often only as effective as their user's knowledge and experience (occasionally, people get lucky), and told him that I asked because several of my family members are law enforcement officers.
All of that to say, should I tell him that I own (and plan to routinely carry) firearms? I know that I probably should have had "the gun talk" before I bought the thing, or ideally before I even moved in, but hindsight is 20/20. I'm torn between the Fight Club approach of never telling anyone you're carrying and trying to be a positive ambassador of responsible gun ownership, which might earn me a shooting partner and backup. On the other hand, if "the gun talk" goes sour or he somehow finds out by himself, I don't want to be screwed out of my living accommodations.