Shortly after I started commuting, I was stopped at a red light waiting to cross a busier street. There was a large truck on the other side waiting to turn left. The light turned green and I went on my way. Upon passing the truck, he had rolled down his window and yelled "The roads are for F***ing cars!!!" Apparently the 5 seconds he had to wait for me to cross the street before he could turn was way too much.
I feel pretty fortunate that this is my worst commuting story so far.