When i was about 4 there was a commercial on tv for preventing child molestation. At the end it showed a finger pressing against lips as in "shhh" in black and white and slightly blurred. To me, this appeared to be a finger touching female private parts. I was absolutely disgusted by this commercial, and wondered why they would so graphically depict the very thing they were trying to prevent. I finally realized what it actually was when i say my little sister (who was barely a year old) see this part of the commercial, press her finger to her lips and go "shhh". I felt like such a pervert for having thought it was something else. I'm relieved i never told anyone what i thought it was!
A childhood belief about adverts

others believed things like this
- I used to believe that a half moon was gods finger nail, and his finger was pointing downwards.— clo
- i thought aliens would come to earth year 2000 because of a commercial were an alien ate a hot dog— ulle
- Because of a commercial I seen on tv, I thought the whole world was the size of the of the U.S.— Paulette
- When I was little I believed that when I put lipstick on my lips, the lips grew.— Alba Águila Castelló
- When I was little, I thought you had to put a finger under the water to make it hot. — M_2
- When I was little, I used to think the commercial advertising the Mitsubishi car was actually a Mr Fishy Car.Anon