I saw that but Snopes is no longer run by the same person and has made some dubious of outright wrong answers. I no longer trust it as a source. As the originator of the site once told me in an email, sure read it, “but do your own fact-check”—and she is right.
@feloneouscat for the sake of argument...
https://www.snopes.com/fact-check/black-lines-on-school-bus/