There is a place I used to take students in a spring fed Florida lake for training. We put up a sign underwater at the entrance to a bad Cave entrance about 30' down. The sign had an illustration of the Grim Reaper and said,"GO NO FURTHER PREVENT YOUR OWN DEATH",
Five people over the next 3 years swam around the sign to get in and died.
I think thats a statement about people in general not just divers.

White Sands Dive Shop
https://whitesandsdiveshop.com/