Bike commuting has its perks, especially when traffic is heavy.  I just got back from such an adventure.  I passed through about 1/4 mile of cars at a standstill near the end.  I could feel the rage building in the poor bastards.  One of them actually stuck their head out the window and shouted something at me.  I couldn't tell what it was, but it definitely wasn't something friendly.    It was a ham, naturally.