Hello?

There's a new security guard in Cube City, and he isn't very nice. In fact, he's downright rude. He has a staring problem. When I pass him on my way to the building's deli, he stares at me...so I say hello. And what does he say? Nothing. Is it that hard to return a greeting -- a greeting I felt obligated to initiate because he was staring at me? He's done this for a whole week. I hope he's just filling in for the friendly multi-tasking security/maintenance guy, or I might have to eventually punch his lights out.