I went to USC for college and lived three blocks to the west my senior year. I would bike to school and back, often twice in the day, and often return late at night.
One night I got to the first block and there were three huge guys standing in the middle of a four way crosswalk. I instinctually went to the far left of the street to pass by them and as I got within 20 feet of the intersection two of them started running at me full speed. One guy shoved me as I was speeding past them and I went screeching, sliding, spinning, toppling to the left. I managed to hold onto my handlebars but went down hard.
Pure adrenaline as I pick myself up (hard to do with a backpack). Got on my petals and burst away. The guys were able to kick my back tire but couldn't catch me. I got home okay. My bike had a flat tire and I had blood pouring down my leg and knee.
After that I took a well lit street and went into campus through the main gate. What a crappy part of town.