Life / Polish folklore/legends [58]

Merged: Polish folklore

Hi all. I could just Google or Wiki this subject but I'm more interested in personable feedback.
I know every country has its own tales and myths/legends but when people tell me about them, it holds more interest.

The only thing I know of, first hand from my in-law family is Baba Jaga.
I know it may all sound very odd but I have my reasons for asking and it may help me understand some strange things about my travels in the future (i.e., some local superstition I've encountered).

Can any of you tell me what you were scared of as youngsters. Or now?!?! Or what stories held weight for you once upon a time?

Thanks.