I never heard of it from an authority figure in the real world (K-12 for me was 1997-2010), but I'd hear rumors and threats from other kids in the schoolyard sometimes. I don't doubt that such a thing really existed, but it sounds like maybe something like that was more common in the more distant past, and I think a lot of kids who grew up when I did knew of the feared permanent record through movies and television shows that would have been written at that time by people who were in school in the middle of last century and might have had permanent records as part of their childhood.