When I was a child, my dentist and her husband would tell me that they were from Mars and that they had green blood and I believed it
A childhood belief about aliens

others believed things like this
- I used to believe they were called dentist disappointments rather than dentist appointments.— Emma
- I believed you had to color all the dinosaurs in coloring books green because all the dinosaurs WERE green.— Betty
- my husband believed, until recently, that the word "several" meant seven of something. — sheryl
- when I was young, I heard that blood had iron in it. I thought blood was red because it was rusty.— Hunter
- For some reason until I was about 10 I used to believe that the dentist pierced your ears.— Kendall.XxX
- When I was little, I thought the tooth fairy was a personal friend of my mom since she was a dentist.— Jess