No amount of eagerness to dive should ever make you skip any pre-dive safety checks. Here's what happened to one diver who learned that lesson the hard way.
Adhering to predive procedures is crucial when using a closed-circuit rebreather. Without a buddy to catch his mistake, one diver pays the ultimate price for carelessness.
A close call drills important safety lessons into the head of one lucky diver. Next time, he'll follow instructions. After reading his story, you will too.