You nailed it - when the offspring bounce off the walls instead of orbiting the sun like well-behaved planets, Mom should stay calm and give them time to settle. Our solar system was not created in a gentle, orderly fashion, according to scientists. It began with bashing and smashing of countless rocks and planets hurling through space; it took eons for the nine planets we have (and their moons) to settle into their clock-like orbit and give us the illusion of the well-behaved revolution of the spheres. I need to look up the source for this; Carl Sagan summarized it so much better than I could!