my sister made me believe that if you didn't have a birth mark you were an alien, this was ok for me as i did but my other sister didn't, she thought for 2yrs that she was an alien, we even had a photo of her being "left" on this planet
A childhood belief about aliens

others believed things like this
- I thought the ball-headed person in the Bic logo was an alien and communicated using alien-like noises.Anon
- I used to think that if you didn't have a birth mark you hadn't been born.— Kim
- Oh oh, I'm an alien, I'm a little alien...
Legal maybe?— Marina - I used to believe that my birth mark was a tea stain!Anon
- i thought aliens would come to earth year 2000 because of a commercial were an alien ate a hot dog— ulle
- When i was little i used to think that a birth mark was the place on the body where you came out of the mother— bipbop