If someone runs you over try to learn from that experience. Maybe riding more carefully or sticking closer to the right side would be in order. Heck, you may even want to get a helmet or switch from flip flops to regular shoes, etc.
Conversely, if you should happen to run someone else over, that's not good either. In that case you should stop to check to see if they're okay.
Thirdly, you do NOT want the chain to break and snap you in the family jewels while traveling at a high rate of speed. Make sure the chain is in good condition and well oiled.