Not a commute but me and my wife do a 15 mile loop most weeknights on our mountain bikes, before we get out into the the country we have to do a right here.
Last night there was a lot of traffic on the right side, as we were waiting the traffic came to a standstill, there was a car about 20 yards away that would have had to stop at the back of the jam, instead of doing this the driver decided to block the right turn, so now we can't turn right and the traffic can't get passed us on our side, I was waiting for horns and abuse from the cars behind, instead the driver of the car behind us got out walked over to the car of the idiot and told the driver that he was a selfish f***ing idiot, unexpected.