I had seen movies (and cartoons?) where the villian would tie some victim to the railroad tracks. Then, I heard that Jesus had died on "the cross". In my young mind, I combined those two pieces of information into the conclusion that Jesus died by being tied down at a railroad "cross"ing.
A childhood belief about characters

others believed things like this
- My mom would tell me to stay off the railroad tracks because the trains were silent and super fast.— Roger
- When I was little I though "A Cross" was a mud/tar pit and that Jesus drowned.— Usagi Ohkami
- I thought the underground railroad was actually a subway.— Greg
- Until I was in High School, I really thought that the "underground railroad" was under the ground.— S
- when I saw a sign with a deer on it I always thought deer had to cross the street by it. like a cross walk— only me
- I used to think that "cross-eyed" meant that people had X's for eyes, like dead people in cartoons.— Tim