[Ducati] bee in the bonnet (is my helmet still okay after a smallmishap?)

[Don Hill]

I agree with Mr Edwards. With no mass in the helmet there was next to no force on the foam liner (the part that actually absorbs shock). Any damade to the shell itself "could" create a stress riser and thus a point of failure in a future incident but it's still the foam liner that saves your head.
  Don't worry about it.
  Don
  ps. Any impact with head installed = Toss it
  
cedwards105 <cedwards105 at cfl.rr.com> wrote:
  You also had no mass inside the helmet (your head) to compress the inner 
lining from the inside. Also your helmet probably didn't fall off the seat 
until the bike was over at 45 degrees, so it probably only fell a couple of 
feet, tops.