What does risky behavior mean? Is splitting lanes risky behavior? Is simply looking before crossing an intersection risky behavior (by cars, by bicycles), is taking out a bike in pouring rain risky? Is it the person doing doughnuts, the person doing sideshows, the person talking while driving, the two motorcyclists riding side by side? The person changing lanes without signaling? The Sunday stunters who rev their bikes down the freeways?

I think, beside the Sunday church drivers, very few people would be classified "safe" driver or rider.