If your are that much of a danger to fall over you shouldn't be on a bike. I ride to work every day (and have for more than 10 years), stopping at all stop signs and lights in one of the hilliest cities in America and have never once seen a cyclists on their side from falling over at a stop sign or light. I have been hit by more than one bike that failed to stop for me while I legally crossed the street in a crosswalk.