A friend believed that they used a tame shark during the filming of "Jaws".
A childhood belief about general

others believed things like this
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- When i was younger,I used to believe i could see a shark in a pool .Anon
- I thought the song "Hit me with your best shot" was "Hit me with your pet shark"Anon
- I used to believe that the foam that sometimes washes up on the beach was shark saliva... — Tiffany
- I used to believe that once you pulled the plug in the bath a shark would swim out of the drain and eat you.— Amy
- I used the scar on my dads leg was a shark bite when in fact he fell off his bike when he was a child— Wendy Murray