Take two objects and put them close together, but not touching. Induction will cause some opposite charges to move across the gap from one another, and away from each other in an alternating fashion. Make the gap r small enough and since the electrostatic force is inversely proportional to r squared the attraction between these opposite charges will overcome all repulsion forces between slightly more distantly separated similar charges. Thus anything will attract something if it's only close enough, just using electrostatics. No matter what the net charges on the objects are. Problem?