For nearly 40 years I thought the 1st 2 lines to "Love Potion #9" were "I took my troubles down to Madam Roux; You know that Gypsy with the gold tatoo". Yesterday I found out it's "Madam Ruth" and "gold-capped tooth".
A childhood belief about misheard lyrics

others believed things like this
- i believe that using gold give electric shock at the time of lightning.so i didnot wear gold when rain starts.— asi18
- I used to belive that there was gold in my nose because pepole would always say that i was "diggin' for gold"!— addicted nose picker
- when I was a kid I used to believe that the end of the rainbow would be a pot of gold— jonas bryan proença de souza
- Until I was 8 I used to believe that if clothing went into the wash more than once it would turn into gold.— Ben
- I used to believe that the rainbow is produced by the elves' pot of gold— Santiago Gordillo
- I used to believe the Golden Calf produced liquid gold instead of milk.— Trisha