I used to believe the eagle's wing in the Nationwide logo was a human rib cage. I thought it was a literal illustration of their slogan, "Nationwide is on your side."
A childhood belief about adverts

others believed things like this
- I used to believe that Eagle Brand Condensed Milk was actually an eagle's milk!Anon
- When I was little I thought seagulls were called seagles. Like a portmanteau of 'sea' and 'eagle'.Anon
- When I was little I thought seagulls were called seagles. Like a portmanteau of 'sea' and 'eagle'.Anon
- I thought the expression "so funny I forgot to laugh" was literal instead of sarcastic— Not so funny after all
- I used to think seagulls were called seagles. Like a portmanteau of 'sea' and 'eagle'.
Anon - I used to believe the Wall Street Crash of 1929 was a literal car crashing into a bank.Anon