I was on a boat dive on the weekend,
It was a swim out to the boat, I was first on, gear stowed and ready for the dive, I looked back to the shore to see a diver in panick, her buddy also panicking attempting to hold her head out of the water.
I jumped over the side and swam back to them. She had NOT done a buddy Check and had not turned on her own air. I dropped her weight belt, turned on her air and inflated her BCD.
It was her first Dive after she had completed her Open Water Course.
She had 28 pounds on her weight belt and needed her BCD completed inflated to keep her on the surface. She needed maybe 18 pounds at the max.
I was amazed she was diving with two experinced divers in their group and neither had bothered to check the novices equipment.