Not suggesting he was not going fast, maybe he was, maybe he was not.....but even bump to the head the wrong way at a slower speed could be devastating to someone, the guy was 50 something and we all like to think we still invincible at that age too!
I will be honest, I have on many occasions, when I pull my sled out the garage for the first time at home and we have snow, run up or down the road with no helmet on, do not think twice about it, as I am sure many have and do!
I pull the sled out of the trailer and I think most times pull it into the trailer with no helmet on.