The not-so-neighborly neighbor

I have been living in my house for 3 years and I have never met my next door neighbor!
Of course, this is no biggie. I am told that he works night shifts so he is never up and about during the daytime. Ok, that is understandable.

Earlier this week, I had Caitlin strapped to my torso and we were going for a walk around the neighborhood. On my way back home, I passed by my next door neighbor's driveway and saw that my neighbor was in the driveway!  It appeared that maybe he just got home and decided to stop and pull a few weeds from his driveway before heading indoors.

In my head, I thought "Oh good!  I finally have the opportunity to introduce myself and Caitlin to the neighbor".  I stopped on the sidewalk at the end of his driveway and said "Hi!!".
The neighbor stopped pulling weeds, stood up, looked at me, crouched back down, and resumed plucking at his weeds.
I spoke a little louder "Hello??".
No response.
I resumed walking and went home.

Wow.
I don't think anyone has ever been so rude to me.
It's one thing to ignore a person trying to strike up a conversation, but how in the world can a someone ignore a person wearing a tiny baby in a cute pink hat trying to strike up a conversation?  And if you are going to ignore a person, then just pretend that you didn't hear them!  Don't stand up, look the person in the eye, and then ignore them!!

I think now I know why I have never met my next door neighbor in the 3 years that I have lived here.  And it's NOT because he works night shifts.