And that is very sensible - even in normal life. The Japs' have been wearing them forever.
With others though, it's not fear, it's closer to terror. How many do you see with full masks on driving their cars??
A jogger passed me the other day over the moors with a mask on. I could hear his laboured breathing long before I heard his footsteps. He was sucking the thing right into his mouth. There was only me and my dog for miles.