I hope he gets your sarcasmNo worries, he's already practiced buoyancy and navigation plus there's a hookah rescue squad up top. What could possibly go wrong?

I had this kind of conversation before..
Someone fresh out of owd did only solo dives to 20m+ without any redundancy and multiple dives without surface intervals.
His argument was, that he had done it before and nothing happens. So its safe and he can do it again.
I dont know why some people just know everything better. Without any education