How does their wearing a helmet or not change anything that happened?

Maybe I'm reading your tone wrong. It sounds like you were really clippping along. If thats' so, I'm thinking things like this are going to happen to you a lot. I'm not saying it's bad because I do the same at times.

It's give and take on bikes just like anything else. If they don't move, we either have to move over or carry bandages and perks. *>)