we now own a trampoline of our very own... my kids bounce so high on that thing, it is scary... and so much fun... great exercise... i bounce on it in the mornings to add variety to my work out... it's not easy for this adult!
One of my good friends is a nurse and the mother of 5, she told me NEVER tell the doctor you have a trampoline!
Our doctor is really cool though, my boys love him. They call my family the crash family, in a three month span we had a broken foot, broken arm and a broken collar bone.