When my family decided one summer day that we should all go out to the nearby pool and go swimming, I told my mother I was "riding the crimson wave" and probably shouldn't go. My mother told everyone I wasn't feeling well and decided we should all not go. That led to my little 8 year old brother throwing a massive temper tantrum yelling and screaming about how I was ruining everything. It was then that my mom finally told him about periods.
A childhood belief about periods

others believed things like this
- I think lightning and thunder is caused by angels throwing temper tantrums Anon
- My big brother told me that if you peed in the pool, it would turn purple and chase you.— Elizabeth
- I used to think that your birthday changed every year, and that your parents just decided what day it was.— Daniel
- I thought that 1983 went on for 3 years - had to ask my sister who decided how long a year lasted.— Sally
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- I used to believe that salt would dry up all of my blood because my mother told me so.— Charlotte H