"The goat man will get you."
Used as a warning when doing something careless that would invite predators. My great-grandma came to the US from the Czech Republic and told the story of a man who raised goats and would steal children and break into homes at night. It was a reminder to lock your doors and valuables, and to never walk alone in shady neighborhoods.
I wish I could remember how to say it in Czech. It began with "Kuzubah".
I just double my HDDs and put them in RAID1. Not foolproof against data loss, but I wouldn't be heartbroken if I lost my Plex library. For important docs I add a cloud backup.