Sorry, not a good reason. I've had one too many bicyclists who DON'T share the road flip me off. Bicyclists are some of the biggest hypocrites ever and can go off a cliff for all I care. Especially when they come within 6 inches of me while running up the mountain road near my school. Or on a trail when they have plenty of space. Assholes. If you're going to bike up a narrow, curving road, be situationally aware. Its at your risk. Just like me no importance whether I am running or in a car. If you want to bike and have priority, go find a trail. And don't run over the runners.

I am involved the organization that maintains a major trail system in my city. We had to close a large portion because of bikers not sharing the road and riding BETWEEN TRAIN CARS.

/rant.