Notice how a worker on boat knows about the possible video proof and keeps ASSERTING FALSELY :

"Nobody's in the cage" "Nobody's in the cage"

but of course... as shown by panicked deck hand.... a human WAS in the broken shark cage! :

https://files.catbox.moe/9vdcz1.mp4

https://poal.co/s/WTF/435635

Quint : "What d'ya have there , a portable shower, or a monkey cage?" Hooper : "Anti-Shark cage." Quint : "Anti-shark cage. You go inside the cage?" [Hooper nods] Quint : "Cage goes in the water. You go in the water. Shark's in the water. Our shark."

[singing] "Farewell and adieu to you fair Spanish ladies. Farewell and adieu to you ladies of Spain. For we've received orders for to sail back to Boston. And so never more shall we see you again."

The difference between "shark-proof" and "shark-resistant". 60% of the time, it works every time.