A helmet, a helmet, my Kingdom for a helmet. The one day I did leave it behind the turbine did the unexpected and stopped whining, : The sound of me with the 1600 kg of useless aluminium strapped to my butt falling through 100ft high trees was only drowned out by me screaming at myself for being so stupid as to not wear the thing. The pain of the 154 stitches in my face and the word Jaeger printed of my forehead is now the base line for the decision to wear or not to wear.To wear always wins. And if it makes the pax nervous, put up some relax signs.