I used to tell everyone that I was allergic to concrete - because when I fell on it, it hurt. I have since learned that it's an allergy that has afflicted 100% of the population
A childhood belief about being ill

others believed things like this
- I thought Viagra was an allergy medicine for a really long time.Anon
- I used to think I was allergic to spoons (what a spoon!)— Sally
- I used to believe that I was allergic to the sun, because whenever I looked at it, I would sneeze.— John 117
- I used to believe that, in cities, if you dug deep enough in anyone's lawn, eventually you'd hit the concrete.— Kevin Fox
- I used to believe my father when he told me that if I sat on cold concrete I would get hemorrhoids.Anon
- I used to call croutons "concretes" because they were so crunchy, I thought they were made of concrete.— Scary Dream