When I was about 4 or 5, there was this song I heard on the radio all the time (apparently by Quarterflash, according to a Google search I just performed), which contained the lyrics "I'm gonna harden my heart, I'm gonna swallow my tears". I took this literally. I believed that if you swallowed your tears, your heart would harden and you would die. One day, after bumping my head on a table leg, I started to cry a little, and a tear dripped into my mouth. I started screaming hysterically, telling my mom I needed to go to the hospital. Of course she was freaking out, thinking I'd split my skull open or something. Through my sobs, I explained that I had jusy swallowed a tear, and would soon die of heart failure. Just like the song says. She looked at me in disbelief, and started laughing.
A childhood belief about songs

others believed things like this
- The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I used to believe that if I swallowed chewing gum, it would wrap around my heart and strangle me— "Tusitala"
- I thought the song "Party Time" by Moby was actually saying "heart attack" (this was before I knew the title)— Elviessa
- I used to think that when people had heart attacks someone came and stabbed their heartAnon
- I used to think that if you eat pig heart, you could grow another heart and be twice as healthier. Anon
- I used to believe that you shouldn't swallow gum because it would stick to you heart and make it stop beating.Anon