The Magic School Bus

Sure, this seems like a funny screencap that someone probably made up about a kids TV show. Actually this really happened in an episode of The Magic Schoolbus in which the kids suspected Ms. Frizzle of being an vampire. Still, the show takes on a much darker tone when taken out of context.

Was that the one where Walter White was the substitute teacher?

This seems made-up but this was actually a real actual Magic School Bus episode.