When I bought my house it came with a barn looking thing in the back of the house that was the garage. It was probably built in the 40’s or maybe even the 30’s, it had a dirt floor and nothing but wood shingles between the inside and the sky. Or at least it used to, because by the time I got it most of the roof was gone. My plan was to fix it up, keep the flavor of the old building but shore up the walls, pour concrete for the floor and put a solid roof on it. I had stuff stored in it, but kept the cars out of it during the winters for fear of it collapsing onto them.
The second winter I was living there it fell down. Forwards. Onto the front end of my car. Had a huge 2x4 resting on the hood, just a couple inches from the windshield. Fortunately my homeowner’s insurance paid me enough to fix the car and buy a kit to build the new one myself (with a lot of help from family and friends.)