[HairOfTheDog]

My personal favorite was a father that tried to tell us that it was ok for his kid to wear a bicycle helmet while riding a horse.

Why isn't it? seems like bike and riding helmets should be designed for about the same speed and type of fall.

[FrogInABlender]

Hair! Are you stirring Sh!t or what?

[Beaker]

Why isn't it?
Different ASTM standards.