In the song "I Need You", Linda Ronstadt sings "I need you like a shot needs to shoot".
I always heard it as "I need you like a shark needs shoes".
Australian politician and feminist Irina Dunn wrote that "A woman needs a man like a fish needs a bicycle", and I always think of that when I hear this song.
A childhood belief about misheard lyrics

others believed things like this
- I thought the song "Hit me with your best shot" was "Hit me with your pet shark"Anon
- When I first heard Bruce Springsteen's song, "Born in the USA," I thought that the song was "Porn in the USA"Anon
- i used to think in the song "hit me with your best shot" was really "hit me while i'm on pot" yea.... i suck!!— Donna
- I thought the line in the song "more than a woman" was "four-legged woman".— boo
- I used to think that the song "Evil Woman" was "Medieval Woman". Anon
- I used to believe that the B-52's song "Love Shack" was actually "Love Shark!"— Natalie