Well hoarders fulfill their own fears
"Look at the shelves"..............."I told you so"
And then more "reasonable" people see the empty shelves..................and become less reasonable, and they join in
Like most "riots" it starts with just a few, then that sways enough of the others to make it a "mob"
We are programmed to do this, its hard to "shake off"
We are not apex predators, evolution wise that is, lol, we are social, or if you want "herd", animals, so we have an instinct to "go along"
You may say you don't, and in that case you should not have children, you have defective DNA

I am not talking about doing what everyone else does, the instinct is more basic and requires certain triggers, like the "news" and the empty shelves
And 42 is the answer to everything in the universe, although it doesn't work on math tests for some reason..............faulty tests I think