Helmet require…

The sky is falling.

Beware of turkeys and fallen buildings.

It pays to be cautious when doing head-stands.

I’d rather have caution on my head than cormorant crap.

And danger on my butt.

A good shampoo will get rid of it

Its a typo…given the van de Graaff generator in the foreground, they meant to say “Cation on your head”.

Better quit while you’re a head.

Head off in the right direction.

If you don’t take caution, whatever happens to you is on your head.