Its all more clear now, I went to speak to the lady who Dad crashed into this morning. The car in front of her slammed on the brakes without warning and she thinks THEY didn't have brake lights (so thats where I heard that part from) and she crashed into the back of them, and looked in her mirror to see Dad try to swerve to the right to avoid her, but caught the side of her car with the left of his bike, which is why his left side isn't great...
Best guess so far is that the person at the front of the pile-up saw a sign saying "Christmas Trees £5" and slammed the brakes on to pull into the side turning... I hate people if thats true...
She seemed like a nice lady, very apologetic even though she wasn't responsible for what happened. She apparently told him not to get up, stopped him from trying to take his helmet off and waited with him until the ambulance arrived. Her ribs hurt so she's off to the hospital at some point early afternoon. (so now perhaps)
Dad is much the same but aching a lot more, happier now he knows what happened. His op is at 2PM (supposedly, you know what hospitals are like with times... lol) and he's in x-ray again at the moment.