Can't you speak?!

Here is my gripe for the day. People who don't say hello.
I am a very friendly person who speaks to everyone. The cashier, the maintenance people, random hall walkers, you get the point. Well being in the government, the majority of the people who I see on a daily basis are implants to the DC area. They aren't Washingtonians, Marylanders or Virginians. So you can't blame the funkiness on my beloved city locals. So here's the problem: I see the same people on a daily basis. They look me in my face, I say hello, and then they act deaf or mute! WTF! I don't have to know your name nor do you need to know mine. Isn't it enough that you know we work for the same Agency on the same floor? How awkward is it when there are only two people in an elevator and neither of them can exchange a friendly greeting?! What is wrong with people?

A few words to those of you who commit this ugly act of social unfriendliness:

When you see someone who you recognize, just say hello
When you come out of the bathroom stall, make eye contact with someone, say hello
When you almost run someone over in hallway, say sorry or hello
Stop pretending that the person who spoke to you thinks you are deaf
Stop counting the tiles on the floor just to avoid making eye contact with me and say hello