I have fallen once while being clipped in, that's when I had my 747's. Coming to a stop sign and my husband ahead of me, I'm slowing down, twist my foot -- NOTHING, try again quickly -- STILL NOTHING! Over I go in slowmo, luckily the traffic was far enough away that I didn't have my head squashed like a pumpkin from being run over by a car. The only other time was when I was riding in a bike lane with LOTS of traffic and didn't realize that traffic had stopped and made a gap for a car to make a left in between the cars. By the time I saw the car in front of me (appearing out of nowhere), I panicked and tried to unclip both feet at the same time, losing my balance and went over on my right side. I'm laying on the ground with one leg up in the air tangled in the bike. It took me about a minute to figure out how to untangle myself from the bike so I could get up. I wasn't hurt and neither was the bike, but it did almost scare me to death. By the time I got up, tell the driver I'm okay and ride off I hear an ambulance, someone must have called 911 thinking I was really hurt since I didn't move for awhile. Even after things like that I still wouldn't trade my Crankbrother Candies for anything, I feel very comfortable in them.