I've often thought that I am invisible...in grocery and video stores, on the city streets, when walking through a door carrying tons of stuff...LOL...but it ain't funny ;) It may be rudeness, or perhaps folks are just in too much of a hurry to pay attention to things around them...self-centered... and here, perhaps first glances or scanning the content of the threads... Maybe we just need to regain some control over our lives and slow down a bit :) My brother-in-law, whom died at age 37 of lung cancer and resulting numerous blood clots/strokes, used a common phrase that I think we have forgotten... "stop and smell the roses"

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854