Cyclist on sidewalk runs over a little girl (with video)
I think this is preciesly why you should always avoid sidewalks unless absolutely nessescary and even then only at extremely slow speed. This is basic code for cyclists and its illegal in my euro-country to ride on the sidewalk. But I've read several times of cyclists on this forum that do just that. It really isn't safe and this is why.
http://www.liveleak.com/view?i=2a3_1432194442