If you are out for a walk and it starts to rain, should you run or walk home if you want to be hit by the fewest number of raindrops?
Does it matter which way the wind is blowing? Is the answer different for thin people and fat people? If the answer is running, would there be an optimum speed to run or should you just run as fast as you can? What if the rain is coming down sideways? Does it make a difference if it's large raindrops or just a light drizzle?