I thought the song, "Drop It Like It's Hot" by Snoop Dog said, "Drop it like a saw, drop it like a saw..." as opposed to drop it like it's hot. I was convinced he liked to kill people by dropping flaming saws on them. I'm not sure why.
A childhood belief about misheard lyrics

others believed things like this
- i used to believe "eaves drop" was actually "ears drop"— sophie
- when I was seven my brother told me that if I swallowed chewing gum my arm would drop off.— john
- I was told when young that if i kept poking my bellybutton my bum would drop off.— vicky
- I used to believe that the heat from the furnace came from hell, and that it was a straight drop there.Anon
- my gandma said that if i picked my nose my eyes would drop out— Lesley
- I used to believe that when you flushed an aeroplane toilet the waste would just drop out of the plane.Anon