Rod Serling showed what those ‘snarky’ neighbors would do if the SHTF
Twilight Zone - The Shelter
Part One
http://www.youtube.com/watch?v=zuj2yuoC3PY
Part Two
http://www.youtube.com/watch?v=IU7v1Cs-Bc4
Part Three
http://www.youtube.com/watch?v=zSwrIy4IwoU
I saw it as a kid. It is still with me today!
I also remember a short story about a man who prepped and his neighbors laughed. Then the BIG ONE HIt. He ran into his self sealing shelter, and later remembered he had canned food, but HE HAD FORGOTTEN HIS CAN OPENER!
Fabulous links as to WHY not to let people know your plans.
These videos are a lesson, if you earn anything, don’t let people know how prepared you are.