That's a pretty good method of storage Cypher1
, but it does follow more of a "security through obscurity" model of theft prevention (i.e., "if they don't know it's there, they won't steal it"). If cost is a factor, there's certainly a value to that model, as concealing something is usually cheaper than hardening it. People have been hiding their money under floorboards since money and floorboards were invented. That being said, you get what you pay for. You aren't going to get the same level of physical security and fire protection from a standard file cabinet, that you would from a purpose-engineered safe.
But on the issue of safes attracting the attention of burglars, when I was doing research before I bought my first safe, I came across a number of articles that reported (based on interviews with incarcerated thieves) that most house breakers will ignore a safe completely. A few will try the handle just in case, but if it's locked, they just move on. Most thieves break into a home when no one is there, and they are in a hurry to get in and out. Small, portable valuables (jewelry, electronics, etc.) are the grab and go items. Now, it's true they will take a firearm if they find one, but typically these are going to be stored in nightstands, dressers, or under the bed, so that's where they look most often.
I read an account where a guy came home to find his house had been burglarized. They stole a laptop, DVD player, some cheap jewelry, etc. But his safe was untouched. The funny thing was, he had forgotten to lock it the last time he went into it. If the thieves had tried the handle, it would have opened right up to reveal over $50,000 in guns, expensive jewelry, and cash. They stole the laptop off a desk ten feet from the safe, but never even bothered to check to see if the safe was unlocked.
I think the take away from that is, even a cheap safe is an effective deterrent against thieves, based on merely the psychological effect. A locked file cabinet may or may not provide the same benefit.
As to waiting for a home owner to come home, I think that would take a particular kind of criminal, where burglary is really a secondary consideration to rape or murder. While it probably does happen, I would guess that it would be in less than 1% of all cases of burglary, at least in the US. However, that scenario is itself a compelling argument for having a CCW and for owning a dog. When I come home at night, I almost always have my gun in my hand when I'm opening the door (because I'm bringing it in from the car). And if the dog doesn't meet me at the door, it's my cue to go immediately to alert posture.
Anyway, kudos for the creative re-use of a non-purpose engineered fixture, but cost savings is the primary benefit I see with your solution. It should be noted however, that you can get a good safe, for less than $1000 if you shop around. I got my safe (17 gun), 1500F/45, delivered across state lines, installed, bolted down, and with a drying rod, for around $950. I'm about out of room, so I'm getting ready to buy another one just like it from the same guy. Two smaller safes are better than one big one, after all.
3d6. That's how I roll.