Because I know how to fix it, it broke.
My free mini fridge (more like a medium fridge... it's 5 feet tall and 24" wide) had a very poor design as to how the compressor was attached to it, so towing it home on a trailer resulted in a broken line. I just happen to have HVAC gauges, 26 pounds of R-134a, and the proper plumbing tools needed to repair it.
If I didn't know shit about HVAC, that fridge would be 100% fine.
Oh and believe me, I AM fixing it. It was a fight getting it out of the junk camper I found it in, and the bitch can turn triple distilled vodka into slush.