Fires Burn Things You Need
Fire has a nasty habit of destroying your entire life in no time flat. Many people make the mistake of leaving their birth certificates, social security cards, and other important documents in areas where they could be easily destroyed in a fire.
Once these documents are gone, it’s actually really annoying to get copies of them, and in the mean time you will have a hard time doing just about anything that requires more trust than “I swear I’m me, just trust me” and a wink.
People like potential employers and bank loan officers don’t tend to go for that kind of thing, unfortunately.
Thieves Tend to Like Shiny Things Important to You
Whether it’s earrings you just bought, or a diamond necklace that’s been in your family for 5 generations, to a thief it’s just pawn shop fodder. You don’t want your most important and sentimental objects to be protected by nothing else besides a lame secret compartment in a jewelry box that every thief in the world already knows about.
Don’t risk being angry at your past self for failing to protect your most important documents and possessions. Make sure you either get yourself a safe, or get proper safe repair on one you have, since a faulty safe isn't helpful to anyone except thieves and fires.