The incongruity of the Germans

I am completely blown away that the same people that will ferociously shove each other out of the way while getting onto the bus will say "good day" or "morning" to each other when entering the waiting room at the doctor's office.

It was pure amazement the first time I saw it; but it is normal behavior in a German doctor's office. When someone new walks into the doctor's waiting room they say something resembling "tag" (roughly translated as good day) or "morgen" (good morning), then the crowd responds with something similar...