Could we deflect an incoming asteroid by bombarding it with paintballs?

What would be a way to deflect asteroid Apophis if it gets a little too close for comfort in 2029 or 2036? Pew-pew it with 5 tons of white paintballs. Not only would the multiple mini impacts bump the asteroid off course, but the white paint would cover the surface and reflect more sunlight, and over time, the… » 10/26/12 3:00pm 10/26/12 3:00pm