Only when I sleep at night.I hope you have not done that subconsciously.

Forgot to add why I drove on sidewalk that time. As I approached intersection, with a green light, a car ahead of me unexpectedly did not move as I anticipated it would, since the light had changed maybe 5 seconds earlier. So .... I moved around it to the right. Double line was on other side. Simples.
) who was in a lane that goes straight behind first car at the light. Light changed green but only for the next lane - a left turning one. She was distracted, music, ciggie, phone whatever started to go and wham rear-ender. Although it isn't absolute if you hit another vehicle from behind it is your fault.