Sam: that hurts, just LOOKING at it! I'm really sorry it happened to you like that. 
I often rode my 750 without a helmet until I got the Vetter on it, and the helmet then kept my [very long] hair off my face when riding. On my other bikes (CB77, CL450, CL350, CB500-4) I rode without, too.
Until the day of The Wreck at The Tracks.
Since then, I don't ride a single block without one.
Mark, sorry it hurt you but it hurt me more, hahaha.
That wasn't a result of the crash, that was the Surgeon trying to get at my brain to fix it. I had a massive blood clot on it and pressure was building up on it. The front one was where they had to drill through my scull to insert something and the little one behind, they drilled through it to insert a drain tube.
I only vaguely remember it, maybe Cal does but they put mittens on my hands to stop me from pulling it out. It must have looked real funny as long as you weren't me, hahaha.
The sum total of my injuries were, a small cut on my left first finger, a broken collar bone, shoulder blade, and several right ribs which punctured my right lung in several places, and a broken bone in my back, other than that I was fine, haha. Oh and you can add to that, flat lining twice in the ambulance on the way to the hospital, OUCH.
All the bones have healed, in fact they only took about 2 months before the pain went away, I was quite surprised at that but the Brain Trauma Surgeon that I still have to see can only tell me I MIGHT get better.
Every thing was going well until I had a seizure on the 5th Jan 2015 for which I am on medication for the rest of my life to stop me from having another. Fingers crossed guys.
Sam.