Post Office dudes strike back

I had some time to sketch at the post office again (heh). I started sketching when I saw an old man getting to the employee to do something, and throwing his bike helmet into… a trash bin. It was his way to avoid the helmet from getting dirty on the floor as there was no place where to put it, and he needed both hands.
Then, I spotted another interesting subject. A middle-aged man was yawning in boredom while waiting, probably since quite a  lot before I came in. You can see him on the bottom left. The others are just generic doodles, quick faces and a pose of people passing by.