I Want to Know What Completely Stupid Thing You Once Believed

The Gullability Of Childhood... When I was a kid, someone told me that tarantulas bite and kill humans, so that they can eat a hole into the stomach of that person and lay their eggs there. I was young, so I believed it. There was no Google to find out if its true. I still have Arachnophobia because of it. Even though I know that it wasn't true.