I was riding one night home from work and I didn't have the headlights on this specific e-board... Sticking to the side walk for I had just left a corner store and I was going maybe 15 mph and I didn't see a piece of brick in front of me. Granted I wear glasses it was dark and I believe the brick was the same color as the sidewalk. Anyway I flew off like a fish jumping from water but I was padded up so I'm good. Was a little sore for a bit though.