I used to think the Metallica song that says exit light, enter night. was actually talking about An EXIT light you would see above a door.
A childhood belief about misheard lyrics

others believed things like this
- I always thought the song Blinded by the light went "Wrapped up like a dousche, another runner in the night"— Dawn
- I used to believe the Metallica song "Trapped Under Ice" said "I turned down the rice."— Erik Z.
- My dad could change a traffic light from red to green using our garage door opener.Anon
- I used to think that Steve Miller song "Big old jet airliner" was "Bingo Jed had a light out" — Skeeter
- I used to believe there was a newsreader inside the radio where the light was!!— Christine
- Whenever I went to bed, I use to believe that when i flicked my light on and off I would signal aliens. — Laura.