There's this guy at work who looks like a cartoon character.  He has beady little eyes that are made even beadier by his full white beard.  He walks with his butt sticking out a little and takes little tiny steps as he holds his coffee cup in his hand.  But that's not the issue.  The issue is that he's one of those people who doesn't say hi after I say hi.  It kills me.  I don't say hi to everyone I walk past.  Sometimes people look the other way or do something so that saying hi would be dumb.  But this guy walks towards me and keeps his gaze fixed on me the whole time.  When he gets in range, I say hi.  He says nothing.  And what really kills me is that there's no change in his facial expression.  He doesn't even give that look that says, "Hi I'll give you a fake smile because you said hi to me."  Nope.  Nothing.  And then he continues on his way like nothing happened.  Sometimes I just want to scream in his face, "HI THERE!  HI!"  Maybe he'll answer me then.  Oi.