Earlier on in my career I felt that I had to hide behind a lot of different masks, and showboat ways of performing. Now, that's a lie. The less I have to hide, the less I have to act. ↗
All the children had to wear a gas mask in case of a gas attack by the Germans. They tried to make the masks like Mickey Mouse faces so the children would like them. But I didn't. They had big ears on them. ↗
And when Roger talks about the frightened ones running away from the bombs, I immediately thought of my days when I was young and I had to wear these gas masks. ↗
So, I created these creatures called The Frightened Ones which in the film you see do have mask like kind of heads and they run beneath the ground to hide. Which is what in fact we did during the war. ↗
There's another issue here - and I have some limits as to what I can say - but there's some real question as to the viability of the chemical masks, the protective gear used by our soldiers. ↗