A weirdly happy ending
This story goes from bad to worse but ends on a happy note, sort of. First, this guy was trying out for a sheriff’s department, which is never good news since we know how dangerous their jobs can be. After diving 110 feet, the OP discovered that there wasn’t enough air in their tank. Always check your tanks before diving, people.
Long story short, this person had to rely on extra air from a buddy but wound up passing out. They had just taken CPR courses in a prior training session, so everyone was ready to assist. The OP had to be choppered out of there, but he wound up dating a flight nurse. Good for you, buddy.