This looks painful...
"As soon as I hit the water, I felt like I had been stung by something," O'Brien said.
When she leaned forward to get out of the water, her husband, back on the beach, was horrified by what he saw: a live stingray hanging by its tail from O'Brien's back, its venomous spine puncturing her skin to the center of her right shoulder.
https://www.fox13news.com/news/venomous-stingray-impales-apollo-beach-woman-i-was-certain-i-was-going-to-die