On a boat two buddies were going backwards off the side. One went and then the captain told the other to go shortly after. Diver 2 didn't look back and almost killed his friend by landing smack ontop of his head. The first diver put up his hands just in time to not get full connection with the tank to his face. He luckly got away with only about a 1/2" gash on his nose.
Lesson learned- just becase they are a captain on the boat doesnt mean disregard a visual check. Also, get your ass away from the boat asap and never be below anyone getting on or off a boat..
Reminds me of when I got hit on the head.
When rolling back off a boat, when instructed to go (enter the water). I was taught, if you are the diver closest to the bow, as you roll back, ALWAYS put a straight arm out across your buddies chest and count 1, before you roll back. If they haven't gone on the go instruction, you will knock them in with you as you roll back.
As the diver closest to the bow, if you go first, and they delay fractionally, they are likely to land on top of you. As the boat is likely to continue moving forward even with the motor out of gear.
(If you are the diver closest to the stern, be ready, and go immediately, otherwise your buddy is likely to knock you in as he enters).
As an instructor with a very nervous student, I failed to follow this rule.
She sat in the wrong place (towards the stern, instead of towards the bow). I didn't put my arm out as I normally would because she was so nervous. On the go, she paused, then went. She landed on top of me.
I new she had hit me hard, but it was only a shallow dive, and I actually felt ok, and didn't have double vision.
So we did 20 minutes at around 10m.
When I got back on the boat, and removed my scuba set. The skipper handed me a cup of tea, I pulled my hood off, and the blood started to flow.... straight into my tea. Spoilt a perfectly good cup of tea, and the skipper made me hang over the side to stop the blood running all over the deck. (Whilst someone else poured saline solution into the wound and tried to patch it up.
I had a 2 inch cut in the top of my skull. That evening, I ended up in A&E for them to superglue it closed because it kept opening up and bleeding - made us late for the curry.