Ren, did you actually ride before helmet laws ?
When I bought my first bike I remember riding down to the local petrol station and as I came out of the office after paying I realised I'd ridden down there with no helmet
Do you think you've pulled a helmet onto your head over the years ? (we need a mathematician)
Obviously it's 6 and a half times for @Six30 , hence his moniker , but what about you ?
I'm about to go under again ...................... I've got one end of the injection hose on my van free but now I need to go under and see if I can get to the other end