OMG! I didn't know Stingrays could be that much horrifying.
These cartilaginous fishes are too dangerous that after seeing this video, you will start disliking ocean world and its creatures. It was the Stingray that caused the death of "The Crocodile Hunter" Steve Irwin. He was stung by the Stingray while filming inside water.
Below is the video that shows the removing act of a stingray barb. Watch with courage.